Copione merged onto master

.gitignore

@@ -83,7 +83,6 @@ gen-external-apklibs
 .leanplum_token
 .adjust_token
 .sentry_token
-.digital_asset_links_token
 .mls_token
 
 

app/build.gradle

@@ -354,21 +354,6 @@ android.applicationVariants.all { variant ->
         println("X_X")
     }
 
-// -------------------------------------------------------------------------------------------------
-// Digital Asset Links: Read token from local file if it exists
-// -------------------------------------------------------------------------------------------------
-
-    print("Digital Asset Links token: ")
-
-    try {
-        def token = new File("${rootDir}/.digital_asset_links_token").text.trim()
-        buildConfigField 'String', 'DIGITAL_ASSET_LINKS_TOKEN', '"' + token + '"'
-        println "(Added from .digital_asset_links_token file)"
-    } catch (FileNotFoundException ignored) {
-        buildConfigField 'String', 'DIGITAL_ASSET_LINKS_TOKEN', 'null'
-        println("X_X")
-    }
-
 // -------------------------------------------------------------------------------------------------
 // MLS: Read token from local file if it exists
 // -------------------------------------------------------------------------------------------------
@@ -413,6 +398,7 @@ dependencies {
     implementation Deps.leanplum_fcm
 
     implementation Deps.mozilla_concept_engine
+    implementation Deps.mozilla_concept_menu
     implementation Deps.mozilla_concept_push
     implementation Deps.mozilla_concept_storage
     implementation Deps.mozilla_concept_sync

app/src/androidTest/java/org/mozilla/fenix/helpers/IdlingResourceHelper.kt

@@ -0,0 +1,26 @@
+package org.mozilla.fenix.helpers
+
+import androidx.test.espresso.IdlingRegistry
+import androidx.test.rule.ActivityTestRule
+import org.mozilla.fenix.HomeActivity
+import org.mozilla.fenix.helpers.idlingresource.AddonsInstallingIdlingResource
+
+object IdlingResourceHelper {
+
+    // Idling Resource to manage installing an addon
+    fun registerAddonInstallingIdlingResource(activityTestRule: ActivityTestRule<HomeActivity>) {
+        IdlingRegistry.getInstance().register(
+            AddonsInstallingIdlingResource(
+                activityTestRule.activity.supportFragmentManager
+            )
+        )
+    }
+
+    fun unregisterAddonInstallingIdlingResource(activityTestRule: ActivityTestRule<HomeActivity>) {
+        IdlingRegistry.getInstance().unregister(
+            AddonsInstallingIdlingResource(
+                activityTestRule.activity.supportFragmentManager
+            )
+        )
+    }
+}

app/src/androidTest/java/org/mozilla/fenix/helpers/idlingresource/AddonsInstallingIdlingResource.kt

@@ -0,0 +1,42 @@
+package org.mozilla.fenix.helpers.idlingresource
+
+import androidx.fragment.app.FragmentManager
+import androidx.navigation.fragment.NavHostFragment
+import androidx.test.espresso.IdlingResource
+import mozilla.components.feature.addons.ui.AddonInstallationDialogFragment
+
+class AddonsInstallingIdlingResource(
+    val fragmentManager: FragmentManager
+) :
+    IdlingResource {
+    private var resourceCallback: IdlingResource.ResourceCallback? = null
+    private var isAddonInstalled = false
+
+    override fun getName(): String {
+        return this::javaClass.name
+    }
+
+    override fun isIdleNow(): Boolean {
+        return isInstalledAddonDialogShown()
+    }
+
+    override fun registerIdleTransitionCallback(callback: IdlingResource.ResourceCallback?) {
+        if (callback != null)
+            resourceCallback = callback
+    }
+
+    private fun isInstalledAddonDialogShown(): Boolean {
+        val activityChildFragments =
+            (fragmentManager.fragments.first() as NavHostFragment)
+                .childFragmentManager.fragments
+
+        for (childFragment in activityChildFragments.indices) {
+            if (activityChildFragments[childFragment] is AddonInstallationDialogFragment) {
+                resourceCallback?.onTransitionToIdle()
+                isAddonInstalled = true
+                return isAddonInstalled
+            }
+        }
+        return isAddonInstalled
+    }
+}

app/src/androidTest/java/org/mozilla/fenix/helpers/idlingresource/AddonsLoadingIdlingResource.kt

@@ -0,0 +1,41 @@
+package org.mozilla.fenix.helpers.idlingresource
+
+import android.view.View
+import android.view.View.VISIBLE
+import androidx.fragment.app.FragmentManager
+import androidx.test.espresso.IdlingResource
+import org.mozilla.fenix.R
+import org.mozilla.fenix.addons.AddonsManagementFragment
+
+class AddonsLoadingIdlingResource(val fragmentManager: FragmentManager) : IdlingResource {
+    private var resourceCallback: IdlingResource.ResourceCallback? = null
+
+    override fun getName(): String {
+        return this::javaClass.name
+    }
+
+    override fun isIdleNow(): Boolean {
+        val idle = addonsFinishedLoading()
+        if (idle)
+            resourceCallback?.onTransitionToIdle()
+        return idle
+    }
+
+    override fun registerIdleTransitionCallback(callback: IdlingResource.ResourceCallback?) {
+        if (callback != null)
+            resourceCallback = callback
+    }
+
+    private fun addonsFinishedLoading(): Boolean {
+        val progressbar = fragmentManager.findFragmentById(R.id.container)?.let {
+            val addonsManagementFragment =
+                it.childFragmentManager.fragments.first { it is AddonsManagementFragment }
+            addonsManagementFragment.view?.findViewById<View>(R.id.add_ons_progress_bar)
+        } ?: return true
+
+        if (progressbar.visibility == VISIBLE)
+            return false
+
+        return true
+    }
+}

app/src/androidTest/java/org/mozilla/fenix/ui/ContextMenusTest.kt

@@ -96,6 +96,7 @@ class ContextMenusTest {
         }
     }
 
+    @Ignore("Test failures: https://github.com/mozilla-mobile/fenix/issues/12473")
     @Test
     fun verifyContextCopyLink() {
         val pageLinks =

app/src/androidTest/java/org/mozilla/fenix/ui/DeepLinkTest.kt

@@ -9,6 +9,7 @@ import androidx.test.uiautomator.UiDevice
 import okhttp3.mockwebserver.MockWebServer
 import org.junit.After
 import org.junit.Before
+import org.junit.Ignore
 import org.junit.Rule
 import org.junit.Test
 import org.mozilla.fenix.helpers.AndroidAssetDispatcher
@@ -124,6 +125,7 @@ class DeepLinkTest {
         }
     }
 
+    @Ignore("Crashing, see: https://github.com/mozilla-mobile/fenix/issues/11239")
     @Test
     fun openSettingsSearchEngine() {
         robot.openSettingsSearchEngine {

app/src/androidTest/java/org/mozilla/fenix/ui/HistoryTest.kt

@@ -11,6 +11,7 @@ import mozilla.components.browser.storage.sync.PlacesHistoryStorage
 import okhttp3.mockwebserver.MockWebServer
 import org.junit.After
 import org.junit.Before
+import org.junit.Ignore
 import org.junit.Rule
 import org.junit.Test
 import org.mozilla.fenix.helpers.AndroidAssetDispatcher
@@ -164,6 +165,7 @@ class HistoryTest {
         }
     }
 
+    @Ignore("Failing test: https://github.com/mozilla-mobile/fenix/issues/12893")
     @Test
     fun deleteAllHistoryTest() {
         val firstWebPage = TestAssetHelper.getGenericAsset(mockWebServer, 1)

app/src/androidTest/java/org/mozilla/fenix/ui/NavigationToolbarTest.kt

@@ -66,6 +66,7 @@ class NavigationToolbarTest {
         }
     }
 
+    @Ignore("Flaky test: https://github.com/mozilla-mobile/fenix/issues/12894")
     @Test
     fun goForwardTest() {
         val defaultWebPage = TestAssetHelper.getGenericAsset(mockWebServer, 1)

app/src/androidTest/java/org/mozilla/fenix/ui/SearchTest.kt

@@ -66,6 +66,7 @@ class SearchTest {
         }
     }
 
+    @Ignore("Failing, see: https://github.com/mozilla-mobile/fenix/issues/12968")
     @Test
     fun shortcutSearchEngineSettingsTest() {
         homeScreen {

app/src/androidTest/java/org/mozilla/fenix/ui/SettingsAddonsTest.kt

@@ -0,0 +1,96 @@
+package org.mozilla.fenix.ui
+
+import org.mozilla.fenix.helpers.TestAssetHelper
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import okhttp3.mockwebserver.MockWebServer
+import org.junit.Rule
+import org.junit.Before
+import org.junit.After
+import org.junit.Test
+import org.mozilla.fenix.helpers.AndroidAssetDispatcher
+import org.mozilla.fenix.helpers.HomeActivityTestRule
+import org.mozilla.fenix.ui.robots.homeScreen
+import org.mozilla.fenix.ui.robots.navigationToolbar
+
+/**
+ *  Tests for verifying the functionality of installing or removing addons
+ *
+ */
+
+class SettingsAddonsTest {
+    /* ktlint-disable no-blank-line-before-rbrace */ // This imposes unreadable grouping.
+
+    private lateinit var mockWebServer: MockWebServer
+
+    @get:Rule
+    val activityTestRule = HomeActivityTestRule()
+
+    @Before
+    fun setUp() {
+        mockWebServer = MockWebServer().apply {
+            setDispatcher(AndroidAssetDispatcher())
+            start()
+        }
+    }
+
+    @After
+    fun tearDown() {
+        mockWebServer.shutdown()
+    }
+
+    // Walks through settings add-ons menu to ensure all items are present
+    @Test
+    fun settingsAddonsItemsTest() {
+        homeScreen {
+        }.openThreeDotMenu {
+        }.openSettings {
+            verifyAdvancedHeading()
+            verifyAddons()
+        }.openAddonsManagerMenu {
+            verifyAddonsItems()
+        }
+    }
+
+    // Opens a webpage and installs an add-on from the three-dot menu
+    @Test
+    fun installAddonFromThreeDotMenu() {
+        val defaultWebPage = TestAssetHelper.getGenericAsset(mockWebServer, 1)
+        val addonName = "uBlock Origin"
+
+        navigationToolbar {
+        }.openNewTabAndEnterToBrowser(defaultWebPage.url) {
+        }.openThreeDotMenu {
+        }.openAddonsManagerMenu {
+            clickInstallAddon(addonName)
+            verifyAddonPrompt(addonName)
+            cancelInstallAddon()
+            clickInstallAddon(addonName)
+            acceptInstallAddon()
+            verifyDownloadAddonPrompt(addonName, activityTestRule)
+        }
+    }
+
+    // Opens the addons settings menu, installs an addon, then uninstalls
+    @Test
+    fun verifyAddonsCanBeUninstalled() {
+        val addonName = "uBlock Origin"
+
+        homeScreen {
+        }.openThreeDotMenu {
+        }.openSettings {
+            verifyAdvancedHeading()
+            verifyAddons()
+        }.openAddonsManagerMenu {
+            clickInstallAddon(addonName)
+            acceptInstallAddon()
+            verifyDownloadAddonPrompt(addonName, activityTestRule)
+        }.openDetailedMenuForAddon(addonName) {
+            verifyCurrentAddonMenu()
+        }.removeAddon {
+        }
+    }
+}

app/src/androidTest/java/org/mozilla/fenix/ui/SettingsBasicsTest.kt

@@ -60,6 +60,7 @@ class SettingsBasicsTest {
         }
     }
 
+    @Ignore("Failing, see: https://github.com/mozilla-mobile/fenix/issues/12968")
     @Test
     // Walks through settings menu and sub-menus to ensure all items are present
     fun settingsMenuBasicsItemsTests() {
@@ -90,6 +91,7 @@ class SettingsBasicsTest {
         }
     }
 
+    @Ignore("Failing, see: https://github.com/mozilla-mobile/fenix/issues/12968")
     @Test
     fun selectNewDefaultSearchEngine() {
         // Goes through the settings and changes the default search engine, then verifies it has changed.

app/src/androidTest/java/org/mozilla/fenix/ui/SmokeTest.kt

@@ -10,6 +10,7 @@ import androidx.test.uiautomator.UiDevice
 import okhttp3.mockwebserver.MockWebServer
 import org.junit.After
 import org.junit.Before
+import org.junit.Ignore
 import org.junit.Rule
 import org.junit.Test
 import org.mozilla.fenix.helpers.AndroidAssetDispatcher
@@ -216,6 +217,7 @@ class SmokeTest {
         }
     }
 
+    @Ignore("Flaky test: https://github.com/mozilla-mobile/fenix/issues/12899")
     @Test
     fun verifyETPToolbarShieldIconIsNotDisplayedIfETPIsOFFGloballyTest() {
         val defaultWebPage = TestAssetHelper.getGenericAsset(mockWebServer, 1)

app/src/androidTest/java/org/mozilla/fenix/ui/robots/BrowserRobot.kt

@@ -366,7 +366,7 @@ class BrowserRobot {
         }
 
         fun openNavigationToolbar(interact: NavigationToolbarRobot.() -> Unit): NavigationToolbarRobot.Transition {
-
+            mDevice.waitForIdle(waitingTime)
             navURLBar().click()
 
             NavigationToolbarRobot().interact()

app/src/androidTest/java/org/mozilla/fenix/ui/robots/SettingsRobot.kt

@@ -19,6 +19,7 @@ import androidx.test.espresso.intent.matcher.IntentMatchers.toPackage
 import androidx.test.espresso.matcher.ViewMatchers
 import androidx.test.espresso.matcher.ViewMatchers.Visibility
 import androidx.test.espresso.matcher.ViewMatchers.hasDescendant
+import androidx.test.espresso.matcher.ViewMatchers.isCompletelyDisplayed
 import androidx.test.espresso.matcher.ViewMatchers.withEffectiveVisibility
 import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.espresso.matcher.ViewMatchers.withText
@@ -74,7 +75,9 @@ class SettingsRobot {
 
     // ADVANCED SECTION
     fun verifyAdvancedHeading() = assertAdvancedHeading()
-    fun verifyAddons() = assertAddons()
+    fun verifyAddons() = assertAddonsButton()
+
+    // DEVELOPER TOOLS SECTION
     fun verifyRemoteDebug() = assertRemoteDebug()
     fun verifyLeakCanaryButton() = assertLeakCanaryButton()
 
@@ -211,6 +214,13 @@ class SettingsRobot {
             SettingsSubMenuDataCollectionRobot().interact()
             return SettingsSubMenuDataCollectionRobot.Transition()
         }
+
+        fun openAddonsManagerMenu(interact: SettingsSubMenuAddonsManagerRobot.() -> Unit): SettingsSubMenuAddonsManagerRobot.Transition {
+            addonsManagerButton().click()
+
+            SettingsSubMenuAddonsManagerRobot().interact()
+            return SettingsSubMenuAddonsManagerRobot.Transition()
+        }
     }
 
     companion object {
@@ -349,15 +359,25 @@ private fun assertDeveloperToolsHeading() {
 
 // ADVANCED SECTION
 private fun assertAdvancedHeading() {
-    scrollToElementByText("Advanced")
-    onView(withText("Advanced"))
-        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+    onView(withId(R.id.recycler_view)).perform(
+        RecyclerViewActions.scrollTo<RecyclerView.ViewHolder>(
+            hasDescendant(withText("Add-ons"))
+        )
+    )
+
+    onView(withText("Add-ons"))
+        .check(matches(isCompletelyDisplayed()))
 }
 
-private fun assertAddons() {
-    scrollToElementByText("Add-ons")
-    onView(withText("Add-ons"))
-        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+private fun assertAddonsButton() {
+    onView(withId(R.id.recycler_view)).perform(
+        RecyclerViewActions.scrollTo<RecyclerView.ViewHolder>(
+            hasDescendant(withText("Add-ons"))
+        )
+    )
+
+    addonsManagerButton()
+        .check(matches(isCompletelyDisplayed()))
 }
 
 private fun assertRemoteDebug() {
@@ -414,5 +434,7 @@ fun isPackageInstalled(packageName: String): Boolean {
     }
 }
 
+private fun addonsManagerButton() = onView(withText(R.string.preferences_addons))
+
 private fun goBackButton() =
     onView(CoreMatchers.allOf(ViewMatchers.withContentDescription("Navigate up")))

app/src/androidTest/java/org/mozilla/fenix/ui/robots/SettingsSubMenuAddonsManagerAddonDetailedMenuRobot.kt

@@ -0,0 +1,59 @@
+package org.mozilla.fenix.ui.robots
+
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.isCompletelyDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import org.hamcrest.CoreMatchers.allOf
+import org.mozilla.fenix.R
+import org.mozilla.fenix.helpers.click
+
+/**
+ * Implementation of Robot Pattern for a single Addon inside of the Addons Management Settings.
+ */
+
+class SettingsSubMenuAddonsManagerAddonDetailedMenuRobot {
+
+    fun verifyCurrentAddonMenu() = assertAddonMenuItems()
+
+    class Transition {
+        fun goBack(interact: SettingsSubMenuAddonsManagerRobot.() -> Unit): SettingsSubMenuAddonsManagerRobot.Transition {
+            fun goBackButton() = onView(allOf(withContentDescription("Navigate up")))
+            goBackButton().click()
+
+            SettingsSubMenuAddonsManagerRobot().interact()
+            return SettingsSubMenuAddonsManagerRobot.Transition()
+        }
+
+        fun removeAddon(interact: SettingsSubMenuAddonsManagerRobot.() -> Unit): SettingsSubMenuAddonsManagerRobot.Transition {
+            removeAddonButton().click()
+
+            SettingsSubMenuAddonsManagerRobot().interact()
+            return SettingsSubMenuAddonsManagerRobot.Transition()
+        }
+    }
+
+    private fun assertAddonMenuItems() {
+        enableSwitchButton().check(matches(isCompletelyDisplayed()))
+        settingsButton().check(matches(isCompletelyDisplayed()))
+        detailsButton().check(matches(isCompletelyDisplayed()))
+        permissionsButton().check(matches(isCompletelyDisplayed()))
+        removeAddonButton().check(matches(isCompletelyDisplayed()))
+    }
+}
+
+private fun enableSwitchButton() =
+    onView(withId(R.id.enable_switch))
+
+private fun settingsButton() =
+    onView(withId(R.id.settings))
+
+private fun detailsButton() =
+    onView(withId(R.id.details))
+
+private fun permissionsButton() =
+    onView(withId(R.id.permissions))
+
+private fun removeAddonButton() =
+    onView(withId(R.id.remove_add_on))

app/src/androidTest/java/org/mozilla/fenix/ui/robots/SettingsSubMenuAddonsManagerRobot.kt

@@ -0,0 +1,228 @@
+package org.mozilla.fenix.ui.robots
+
+import android.widget.RelativeLayout
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.hasDescendant
+import androidx.test.espresso.matcher.ViewMatchers.hasSibling
+import androidx.test.espresso.matcher.ViewMatchers.isAssignableFrom
+import androidx.test.espresso.matcher.ViewMatchers.isCompletelyDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.isDescendantOfA
+import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
+import androidx.test.espresso.matcher.ViewMatchers.withEffectiveVisibility
+import androidx.test.espresso.matcher.ViewMatchers.Visibility
+import androidx.test.espresso.matcher.ViewMatchers.withParent
+import androidx.test.uiautomator.By
+import androidx.test.uiautomator.Until
+import org.hamcrest.CoreMatchers.allOf
+import org.hamcrest.CoreMatchers.containsString
+import org.hamcrest.CoreMatchers.instanceOf
+import org.hamcrest.CoreMatchers.not
+import org.mozilla.fenix.R
+import org.mozilla.fenix.helpers.HomeActivityTestRule
+import org.mozilla.fenix.helpers.IdlingResourceHelper.registerAddonInstallingIdlingResource
+import org.mozilla.fenix.helpers.IdlingResourceHelper.unregisterAddonInstallingIdlingResource
+import org.mozilla.fenix.helpers.TestAssetHelper.waitingTime
+import org.mozilla.fenix.helpers.TestHelper
+import org.mozilla.fenix.helpers.click
+import org.mozilla.fenix.helpers.ext.waitNotNull
+
+/**
+ * Implementation of Robot Pattern for the Addons Management Settings.
+ */
+
+class SettingsSubMenuAddonsManagerRobot {
+    fun verifyAddonPrompt(addonName: String) = assertAddonPrompt(addonName)
+    fun clickInstallAddon(addonName: String) = selectInstallAddon(addonName)
+    fun verifyDownloadAddonPrompt(addonName: String, activityTestRule: HomeActivityTestRule) =
+        assertDownloadingAddonPrompt(addonName, activityTestRule)
+
+    fun cancelInstallAddon() = cancelInstall()
+    fun acceptInstallAddon() = allowInstall()
+    fun verifyAddonsItems() = assertAddonsItems()
+    fun verifyAddonCanBeInstalled(addonName: String) = assertAddonCanBeInstalled(addonName)
+
+    class Transition {
+        fun goBack(interact: HomeScreenRobot.() -> Unit): HomeScreenRobot.Transition {
+            fun goBackButton() = onView(allOf(withContentDescription("Navigate up")))
+            goBackButton().click()
+
+            HomeScreenRobot().interact()
+            return HomeScreenRobot.Transition()
+        }
+
+        fun openDetailedMenuForAddon(
+            addonName: String,
+            interact: SettingsSubMenuAddonsManagerAddonDetailedMenuRobot.() -> Unit
+        ): SettingsSubMenuAddonsManagerAddonDetailedMenuRobot.Transition {
+            addonName.chars()
+
+            onView(
+                allOf(
+                    withId(R.id.add_on_item),
+                    hasDescendant(
+                        allOf(
+                            withId(R.id.add_on_name),
+                            withText(addonName)
+                        )
+                    )
+                )
+            ).check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+                .perform(click())
+
+            SettingsSubMenuAddonsManagerAddonDetailedMenuRobot().interact()
+            return SettingsSubMenuAddonsManagerAddonDetailedMenuRobot.Transition()
+        }
+    }
+
+    private fun installButtonForAddon(addonName: String) =
+        onView(
+            allOf(
+                withContentDescription(R.string.mozac_feature_addons_install_addon_content_description),
+                isDescendantOfA(withId(R.id.add_on_item)),
+                hasSibling(hasDescendant(withText(addonName)))
+            )
+        )
+
+    private fun selectInstallAddon(addonName: String) {
+        mDevice.waitNotNull(
+            Until.findObject(By.textContains(addonName)),
+            waitingTime
+        )
+
+        installButtonForAddon(addonName)
+            .check(matches(isCompletelyDisplayed()))
+            .perform(click())
+    }
+
+    private fun assertAddonIsEnabled(addonName: String) {
+        installButtonForAddon(addonName)
+            .check(matches(not(isCompletelyDisplayed())))
+    }
+
+    private fun assertAddonPrompt(addonName: String) {
+        onView(allOf(withId(R.id.title), withText("Add $addonName?")))
+            .check(matches(isCompletelyDisplayed()))
+
+        onView(
+            allOf(
+                withId(R.id.permissions),
+                withText(containsString("It requires your permission to:"))
+            )
+        )
+            .check(matches(isCompletelyDisplayed()))
+
+        onView(allOf(withId(R.id.allow_button), withText("Add")))
+            .check(matches(isCompletelyDisplayed()))
+
+        onView(allOf(withId(R.id.deny_button), withText("Cancel")))
+            .check(matches(isCompletelyDisplayed()))
+    }
+
+    private fun assertDownloadingAddonPrompt(
+        addonName: String,
+        activityTestRule: HomeActivityTestRule
+    ) {
+        registerAddonInstallingIdlingResource(activityTestRule)
+
+        onView(
+            allOf(
+                withText("Okay, Got it"),
+                withParent(instanceOf(RelativeLayout::class.java)),
+                hasSibling(withText("$addonName has been added to Firefox Preview")),
+                hasSibling(withText("Open it in the menu")),
+                hasSibling(withText("Allow in private browsing"))
+            )
+        )
+            .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+            .perform(click())
+
+        unregisterAddonInstallingIdlingResource(activityTestRule)
+
+        TestHelper.scrollToElementByText(addonName)
+
+        assertAddonIsInstalled(addonName)
+    }
+
+    private fun assertAddonIsInstalled(addonName: String) {
+        onView(
+            allOf(
+                withId(R.id.add_button),
+                isDescendantOfA(withId(R.id.add_on_item)),
+                hasSibling(hasDescendant(withText(addonName)))
+            )
+        ).check(matches(withEffectiveVisibility(Visibility.GONE)))
+    }
+
+    private fun cancelInstall() {
+        onView(allOf(withId(R.id.deny_button), withText("Cancel")))
+            .check(matches(isCompletelyDisplayed()))
+            .perform(click())
+    }
+
+    private fun allowInstall() {
+        onView(allOf(withId(R.id.allow_button), withText("Add")))
+            .check(matches(isCompletelyDisplayed()))
+            .perform(click())
+    }
+
+    private fun assertAddonsItems() {
+        assertRecommendedTitleDisplayed()
+        assertAddons()
+    }
+
+    private fun assertRecommendedTitleDisplayed() {
+        onView(allOf(withId(R.id.title), withText("Recommended")))
+            .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+    }
+
+    private fun assertEnabledTitleDisplayed() {
+        onView(withText("Enabled"))
+            .check(matches(isCompletelyDisplayed()))
+    }
+
+    private fun assertAddons() {
+        assertAddonUblock()
+    }
+
+    private fun assertAddonUblock() {
+        onView(
+            allOf(
+                isAssignableFrom(RelativeLayout::class.java),
+                withId(R.id.add_on_item),
+                hasDescendant(allOf(withId(R.id.add_on_icon), isCompletelyDisplayed())),
+                hasDescendant(
+                    allOf(
+                        withId(R.id.details_container),
+                        hasDescendant(withText("uBlock Origin")),
+                        hasDescendant(withText("Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.")),
+                        hasDescendant(withId(R.id.rating)),
+                        hasDescendant(withId(R.id.users_count))
+                    )
+                ),
+                hasDescendant(withId(R.id.add_button))
+            )
+        ).check(matches(isCompletelyDisplayed()))
+    }
+
+    private fun assertAddonCanBeInstalled(addonName: String) {
+        device.waitNotNull(Until.findObject(By.text(addonName)), waitingTime)
+
+        onView(
+            allOf(
+                withId(R.id.add_button),
+                hasSibling(
+                    hasDescendant(
+                        allOf(
+                            withId(R.id.add_on_name),
+                            withText(addonName)
+                        )
+                    )
+                )
+            )
+        ).check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
+    }
+}

app/src/androidTest/java/org/mozilla/fenix/ui/robots/TabDrawerRobot.kt

@@ -29,6 +29,8 @@ import androidx.test.uiautomator.UiDevice
 import androidx.test.uiautomator.Until
 import androidx.test.uiautomator.Until.findObject
 import org.hamcrest.CoreMatchers.allOf
+import org.hamcrest.CoreMatchers.anyOf
+import org.hamcrest.CoreMatchers.containsString
 import org.mozilla.fenix.R
 import org.mozilla.fenix.helpers.TestAssetHelper
 import org.mozilla.fenix.helpers.TestAssetHelper.waitingTime
@@ -179,10 +181,21 @@ private fun tabMediaControlButton() = onView(withId(R.id.play_pause_button))
 
 private fun closeTabButton() = onView(withId(R.id.mozac_browser_tabstray_close))
 private fun assertCloseTabsButton(title: String) =
-    onView(allOf(withId(R.id.mozac_browser_tabstray_close), withContentDescription("Close tab $title")))
+    onView(
+        allOf(
+            withId(R.id.mozac_browser_tabstray_close),
+            withContentDescription("Close tab $title")
+        )
+    )
         .check(matches(withEffectiveVisibility(ViewMatchers.Visibility.VISIBLE)))
 
-private fun normalBrowsingButton() = onView(withContentDescription("Open tabs"))
+private fun normalBrowsingButton() = onView(
+    anyOf(
+        withContentDescription(containsString("open tabs. Tap to switch tabs.")),
+        withContentDescription(containsString("open tab. Tap to switch tabs."))
+    )
+)
+
 private fun privateBrowsingButton() = onView(withContentDescription("Private tabs"))
 private fun newTabButton() = onView(withId(R.id.new_tab_button))
 private fun threeDotMenu() = onView(withId(R.id.tab_tray_overflow))

app/src/androidTest/java/org/mozilla/fenix/ui/robots/ThreeDotMenuMainRobot.kt

@@ -347,6 +347,17 @@ class ThreeDotMenuMainRobot {
             ThreeDotMenuMainRobot().interact()
             return ThreeDotMenuMainRobot.Transition()
         }
+
+        fun openAddonsManagerMenu(interact: SettingsSubMenuAddonsManagerRobot.() -> Unit): SettingsSubMenuAddonsManagerRobot.Transition {
+            clickAddonsManagerButton()
+            mDevice.waitNotNull(
+                Until.findObject(By.text("Recommended")),
+                waitingTime
+            )
+
+            SettingsSubMenuAddonsManagerRobot().interact()
+            return SettingsSubMenuAddonsManagerRobot.Transition()
+        }
     }
 }
 
@@ -423,7 +434,9 @@ private fun addNewCollectionButton() = onView(allOf(withText("Add new collection
 private fun assertaddNewCollectionButton() = addNewCollectionButton()
     .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
 
-private fun collectionNameTextField() = onView(allOf(withResourceName("name_collection_edittext")))
+private fun collectionNameTextField() =
+    onView(allOf(withResourceName("name_collection_edittext")))
+
 private fun assertCollectionNameTextField() = collectionNameTextField()
     .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
 
@@ -473,6 +486,7 @@ private fun assertReaderViewAppearanceButton(visible: Boolean) = readerViewAppea
 
 private fun addToFirefoxHomeButton() =
     onView(allOf(withText(R.string.browser_menu_add_to_top_sites)))
+
 private fun assertAddToFirefoxHome() {
     onView(withId(R.id.mozac_browser_menu_recyclerView))
         .perform(
@@ -514,3 +528,10 @@ private fun assertOpenInAppButton() {
             )
         ).check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
 }
+
+private fun addonsManagerButton() = onView(withText("Add-ons Manager"))
+
+private fun clickAddonsManagerButton() {
+    onView(withText("Add-ons")).click()
+    addonsManagerButton().click()
+}

app/src/main/AndroidManifest.xml

@@ -23,6 +23,7 @@
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
+        android:requestLegacyExternalStorage="true"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/NormalTheme"

app/src/main/java/org/mozilla/fenix/FeatureFlags.kt

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix
 
 /**

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -28,7 +28,6 @@ import androidx.navigation.NavDirections
 import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.NavigationUI
-import androidx.recyclerview.widget.LinearLayoutManager
 import kotlinx.android.synthetic.main.activity_home.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -41,10 +40,7 @@ import mozilla.components.browser.session.SessionManager
 import mozilla.components.browser.state.state.SessionState
 import mozilla.components.browser.state.state.WebExtensionState
 import mozilla.components.browser.state.store.BrowserStore
-import mozilla.components.browser.tabstray.BrowserTabsTray
-import mozilla.components.browser.thumbnails.loader.ThumbnailLoader
 import mozilla.components.concept.engine.EngineView
-import mozilla.components.concept.tabstray.TabsTray
 import mozilla.components.feature.contextmenu.DefaultSelectionActionDelegate
 import mozilla.components.feature.search.BrowserStoreSearchAdapter
 import mozilla.components.feature.search.SearchAdapter
@@ -97,7 +93,6 @@ import org.mozilla.fenix.settings.search.AddSearchEngineFragmentDirections
 import org.mozilla.fenix.settings.search.EditCustomSearchEngineFragmentDirections
 import org.mozilla.fenix.share.AddNewDeviceFragmentDirections
 import org.mozilla.fenix.sync.SyncedTabsFragmentDirections
-import org.mozilla.fenix.tabtray.FenixTabsAdapter
 import org.mozilla.fenix.tabtray.TabTrayDialogFragment
 import org.mozilla.fenix.theme.DefaultThemeManager
 import org.mozilla.fenix.theme.ThemeManager
@@ -315,17 +310,6 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
                 actionSorter = ::actionSorter
             )
         }.asView()
-        TabsTray::class.java.name -> {
-            val layout = LinearLayoutManager(context).apply {
-                reverseLayout = true
-                stackFromEnd = true
-            }
-
-            val thumbnailLoader = ThumbnailLoader(components.core.thumbnailStorage)
-            val adapter = FenixTabsAdapter(context, thumbnailLoader)
-
-            BrowserTabsTray(context, attrs, 0, adapter, layout)
-        }
         else -> super.onCreateView(parent, name, context, attrs)
     }
 

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -12,6 +12,7 @@ import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.view.accessibility.AccessibilityManager
 import androidx.annotation.CallSuper
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.net.toUri
@@ -93,8 +94,10 @@ import org.mozilla.fenix.components.toolbar.BrowserToolbarViewInteractor
 import org.mozilla.fenix.components.toolbar.DefaultBrowserToolbarController
 import org.mozilla.fenix.components.toolbar.SwipeRefreshScrollingViewBehavior
 import org.mozilla.fenix.components.toolbar.ToolbarIntegration
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.downloads.DownloadService
 import org.mozilla.fenix.downloads.DynamicDownloadDialog
+import org.mozilla.fenix.ext.accessibilityManager
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.enterToImmersiveMode
 import org.mozilla.fenix.ext.hideToolbar
@@ -104,7 +107,6 @@ import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.sessionsOfType
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.home.SharedViewModel
-import org.mozilla.fenix.tabtray.TabTrayDialogFragment
 import org.mozilla.fenix.theme.ThemeManager
 import org.mozilla.fenix.utils.allowUndo
 import org.mozilla.fenix.wifi.SitePermissionsWifiIntegration
@@ -118,7 +120,7 @@ import java.lang.ref.WeakReference
 @ExperimentalCoroutinesApi
 @Suppress("TooManyFunctions", "LargeClass")
 abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, SessionManager.Observer,
-    OnBackLongPressedListener {
+    OnBackLongPressedListener, AccessibilityManager.AccessibilityStateChangeListener {
     private lateinit var browserFragmentStore: BrowserFragmentStore
     private lateinit var browserAnimator: BrowserAnimator
 
@@ -228,7 +230,10 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                 tabCollectionStorage = requireComponents.core.tabCollectionStorage,
                 topSiteStorage = requireComponents.core.topSiteStorage,
                 onTabCounterClicked = {
-                    TabTrayDialogFragment.show(parentFragmentManager)
+                    findNavController().nav(
+                        R.id.browserFragment,
+                        BrowserFragmentDirections.actionGlobalTabTrayDialogFragment()
+                    )
                 },
                 onCloseTab = {
                     val snapshot = sessionManager.createSessionSnapshot(it)
@@ -243,7 +248,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                     }
 
                     viewLifecycleOwner.lifecycleScope.allowUndo(
-                        requireView(),
+                        requireView().browserLayout,
                         snackbarMessage,
                         requireContext().getString(R.string.snackbar_deleted_undo),
                         {
@@ -264,7 +269,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
 
             _browserToolbarView = BrowserToolbarView(
                 container = view.browserLayout,
-                shouldUseBottomToolbar = context.settings().shouldUseBottomToolbar,
+                toolbarPosition = context.settings().toolbarPosition,
                 interactor = browserInteractor,
                 customTabSession = customTabSessionId?.let { sessionManager.findSessionById(it) },
                 lifecycleOwner = viewLifecycleOwner
@@ -307,7 +312,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                 feature = ContextMenuFeature(
                     fragmentManager = parentFragmentManager,
                     store = store,
-                    candidates = getContextMenuCandidates(context, view),
+                    candidates = getContextMenuCandidates(context, view.browserLayout),
                     engineView = view.engineView,
                     useCases = context.components.useCases.contextMenuUseCases,
                     tabId = customTabSessionId
@@ -677,10 +682,10 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
     private fun initializeEngineView(toolbarHeight: Int) {
         engineView.setDynamicToolbarMaxHeight(toolbarHeight)
 
-        val behavior = if (requireContext().settings().shouldUseBottomToolbar) {
-            EngineViewBottomBehavior(context, null)
-        } else {
-            SwipeRefreshScrollingViewBehavior(requireContext(), null, engineView, browserToolbarView)
+        val context = requireContext()
+        val behavior = when (context.settings().toolbarPosition) {
+            ToolbarPosition.BOTTOM -> EngineViewBottomBehavior(context, null)
+            ToolbarPosition.TOP -> SwipeRefreshScrollingViewBehavior(context, null, engineView, browserToolbarView)
         }
 
         (swipeRefresh.layoutParams as CoordinatorLayout.LayoutParams).behavior = behavior
@@ -713,6 +718,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         super.onStart()
         requireComponents.core.sessionManager.register(this, this, autoPause = true)
         sitePermissionWifiIntegration.get()?.maybeAddWifiConnectedListener()
+        requireContext().accessibilityManager.addAccessibilityStateChangeListener(this)
     }
 
     @CallSuper
@@ -825,7 +831,9 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                 if (session.hasParentSession) {
                     sessionManager.remove(session, true)
                 }
-                val goToOverview = isLastSession || !session.hasParentSession
+                // We want to return to home if this removed session was the last session of its type
+                // and didn't have a parent session to select.
+                val goToOverview = isLastSession && !session.hasParentSession
                 !goToOverview
             }
         }
@@ -843,7 +851,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
      * Returns the layout [android.view.Gravity] for the quick settings and ETP dialog.
      */
     protected fun getAppropriateLayoutGravity(): Int =
-        if (context?.settings()?.shouldUseBottomToolbar == true) Gravity.BOTTOM else Gravity.TOP
+        context?.settings()?.toolbarPosition?.androidGravity ?: Gravity.BOTTOM
 
     /**
      * Updates the site permissions rules based on user settings.
@@ -1011,6 +1019,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         super.onDestroyView()
         _browserToolbarView = null
         _browserInteractor = null
+        requireContext().accessibilityManager.removeAccessibilityStateChangeListener(this)
     }
 
     companion object {
@@ -1019,4 +1028,8 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         private const val REQUEST_CODE_PROMPT_PERMISSIONS = 2
         private const val REQUEST_CODE_APP_PERMISSIONS = 3
     }
+
+    override fun onAccessibilityStateChanged(enabled: Boolean) {
+        browserToolbarView.setScrollFlags(enabled)
+    }
 }

app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt

@@ -21,6 +21,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import mozilla.components.concept.engine.EngineView
 import org.mozilla.fenix.R
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.settings
 import java.lang.ref.WeakReference
 
@@ -155,12 +156,15 @@ class BrowserAnimator(
         fun getToolbarNavOptions(context: Context): NavOptions {
             val navOptions = NavOptions.Builder()
 
-            if (!context.settings().shouldUseBottomToolbar) {
-                navOptions.setEnterAnim(R.anim.fade_in)
-                navOptions.setExitAnim(R.anim.fade_out)
-            } else {
-                navOptions.setEnterAnim(R.anim.fade_in_up)
-                navOptions.setExitAnim(R.anim.fade_out_down)
+            when (context.settings().toolbarPosition) {
+                ToolbarPosition.TOP -> {
+                    navOptions.setEnterAnim(R.anim.fade_in)
+                    navOptions.setExitAnim(R.anim.fade_out)
+                }
+                ToolbarPosition.BOTTOM -> {
+                    navOptions.setEnterAnim(R.anim.fade_in_up)
+                    navOptions.setExitAnim(R.anim.fade_out_down)
+                }
             }
 
             return navOptions.build()

app/src/main/java/org/mozilla/fenix/browser/CustomTabContextMenuCandidate.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.browser
 

app/src/main/java/org/mozilla/fenix/browser/UriOpenedObserver.kt

@@ -12,6 +12,7 @@ import mozilla.components.browser.session.SessionManager
 import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
+import org.mozilla.fenix.ext.sessionsOfType
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.search.telemetry.ads.AdsTelemetry
 import org.mozilla.fenix.utils.Settings
@@ -44,25 +45,29 @@ class UriOpenedObserver(
         session.register(singleSessionObserver, owner)
     }
 
+    private fun saveOpenTabsCount() {
+        settings.setOpenTabsCount(sessionManager.sessionsOfType(private = false).count())
+    }
+
     override fun onAllSessionsRemoved() {
-        settings.setOpenTabsCount(sessionManager.sessions.filter { !it.private }.size)
+        saveOpenTabsCount()
         sessionManager.sessions.forEach {
             it.unregister(singleSessionObserver)
         }
     }
 
     override fun onSessionAdded(session: Session) {
-        settings.setOpenTabsCount(sessionManager.sessions.filter { !it.private }.size)
+        saveOpenTabsCount()
         session.register(singleSessionObserver, owner)
     }
 
     override fun onSessionRemoved(session: Session) {
-        settings.setOpenTabsCount(sessionManager.sessions.filter { !it.private }.size)
+        saveOpenTabsCount()
         session.unregister(singleSessionObserver)
     }
 
     override fun onSessionsRestored() {
-        settings.setOpenTabsCount(sessionManager.sessions.filter { !it.private }.size)
+        saveOpenTabsCount()
         sessionManager.sessions.forEach {
             it.register(singleSessionObserver, owner)
         }

app/src/main/java/org/mozilla/fenix/cfr/SearchWidgetCFR.kt

@@ -11,7 +11,6 @@ import android.graphics.drawable.ColorDrawable
 import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
-import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.core.view.marginTop
 import kotlinx.android.synthetic.main.search_widget_cfr.view.*
@@ -21,6 +20,7 @@ import org.mozilla.fenix.R
 import org.mozilla.fenix.components.SearchWidgetCreator
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.utils.Settings
 
 /**
@@ -50,18 +50,14 @@ class SearchWidgetCFR(
         val searchWidgetCFRDialog = Dialog(context)
         val layout = LayoutInflater.from(context)
             .inflate(R.layout.search_widget_cfr, null)
-        val isBottomToolbar = settings.shouldUseBottomToolbar
+        val toolbarPosition = settings.toolbarPosition
 
-        layout.drop_down_triangle.isGone = isBottomToolbar
-        layout.pop_up_triangle.isVisible = isBottomToolbar
+        layout.drop_down_triangle.isVisible = toolbarPosition == ToolbarPosition.TOP
+        layout.pop_up_triangle.isVisible = toolbarPosition == ToolbarPosition.BOTTOM
 
         val toolbar = getToolbar()
 
-        val gravity = if (isBottomToolbar) {
-            Gravity.CENTER_HORIZONTAL or Gravity.BOTTOM
-        } else {
-            Gravity.CENTER_HORIZONTAL or Gravity.TOP
-        }
+        val gravity = Gravity.CENTER_HORIZONTAL or toolbarPosition.androidGravity
 
         layout.cfr_neg_button.setOnClickListener {
             metrics.track(Event.SearchWidgetCFRNotNowPressed)

app/src/main/java/org/mozilla/fenix/collections/CollectionCreationController.kt

@@ -15,6 +15,8 @@ import mozilla.components.feature.tab.collections.TabCollection
 import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
+import org.mozilla.fenix.ext.getDefaultCollectionNumber
+import org.mozilla.fenix.ext.normalSessionSize
 import org.mozilla.fenix.home.Tab
 
 interface CollectionCreationController {
@@ -92,7 +94,7 @@ class DefaultCollectionCreationController(
         }
 
         metrics.track(
-            Event.CollectionSaved(normalSessionSize(sessionManager), sessionBundle.size)
+            Event.CollectionSaved(sessionManager.normalSessionSize(), sessionBundle.size)
         )
     }
 
@@ -134,7 +136,7 @@ class DefaultCollectionCreationController(
         }
 
         metrics.track(
-            Event.CollectionTabsAdded(normalSessionSize(sessionManager), sessionBundle.size)
+            Event.CollectionTabsAdded(sessionManager.normalSessionSize(), sessionBundle.size)
         )
     }
 
@@ -146,7 +148,7 @@ class DefaultCollectionCreationController(
                 } else {
                     SaveCollectionStep.SelectCollection
                 },
-                defaultCollectionNumber = getDefaultCollectionNumber()
+                defaultCollectionNumber = store.state.tabCollections.getDefaultCollectionNumber()
             )
         )
     }
@@ -155,26 +157,11 @@ class DefaultCollectionCreationController(
         store.dispatch(
             CollectionCreationAction.StepChanged(
                 SaveCollectionStep.NameCollection,
-                getDefaultCollectionNumber()
+                store.state.tabCollections.getDefaultCollectionNumber()
             )
         )
     }
 
-    /**
-     * Returns the new default name recommendation for a collection
-     *
-     * Algorithm: Go through all collections, make a list of their names and keep only the default ones.
-     * Then get the numbers from all these default names, compute the maximum number and add one.
-     */
-    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
-    fun getDefaultCollectionNumber(): Int {
-        return (store.state.tabCollections
-            .map { it.title }
-            .filter { it.matches(Regex("Collection\\s\\d+")) }
-            .map { Integer.valueOf(it.split(" ")[DEFAULT_COLLECTION_NUMBER_POSITION]) }
-            .max() ?: 0) + DEFAULT_INCREMENT_VALUE
-    }
-
     override fun addTabToSelection(tab: Tab) {
         store.dispatch(CollectionCreationAction.TabAdded(tab))
     }
@@ -209,14 +196,4 @@ class DefaultCollectionCreationController(
             SaveCollectionStep.SelectTabs, SaveCollectionStep.RenameCollection -> null
         }
     }
-
-    /**
-     * @return the number of currently active sessions that are neither custom nor private
-     */
-    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
-    fun normalSessionSize(sessionManager: SessionManager): Int {
-        return sessionManager.sessions.filter { session ->
-            (!session.isCustomTabSession() && !session.private)
-        }.size
-    }
 }

app/src/main/java/org/mozilla/fenix/collections/CollectionCreationFragment.kt

@@ -17,14 +17,16 @@ import kotlinx.android.synthetic.main.fragment_create_collection.view.*
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.plus
-import mozilla.components.browser.session.SessionManager
-import mozilla.components.browser.state.store.BrowserStore
+import mozilla.components.browser.state.selector.findTab
+import mozilla.components.browser.state.state.BrowserState
+import mozilla.components.browser.state.state.TabSessionState
 import mozilla.components.lib.publicsuffixlist.PublicSuffixList
 import mozilla.components.lib.state.ext.consumeFrom
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.StoreProvider
+import org.mozilla.fenix.ext.getMediaStateForSession
 import org.mozilla.fenix.ext.requireComponents
-import org.mozilla.fenix.ext.toTab
+import org.mozilla.fenix.ext.toShortUrl
 import org.mozilla.fenix.home.Tab
 
 @ExperimentalCoroutinesApi
@@ -47,12 +49,11 @@ class CollectionCreationFragment : DialogFragment() {
         val view = inflater.inflate(R.layout.fragment_create_collection, container, false)
         val args: CollectionCreationFragmentArgs by navArgs()
 
-        val sessionManager = requireComponents.core.sessionManager
         val store = requireComponents.core.store
         val publicSuffixList = requireComponents.publicSuffixList
-        val tabs = sessionManager.getTabs(args.tabIds, store, publicSuffixList)
+        val tabs = store.state.getTabs(args.tabIds, publicSuffixList)
         val selectedTabs = if (args.selectedTabIds != null) {
-            sessionManager.getTabs(args.selectedTabIds, store, publicSuffixList).toSet()
+            store.state.getTabs(args.selectedTabIds, publicSuffixList).toSet()
         } else {
             if (tabs.size == 1) setOf(tabs.first()) else emptySet()
         }
@@ -112,14 +113,30 @@ class CollectionCreationFragment : DialogFragment() {
     }
 }
 
-@VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
-fun SessionManager.getTabs(
+@VisibleForTesting
+internal fun BrowserState.getTabs(
     tabIds: Array<String>?,
-    store: BrowserStore,
     publicSuffixList: PublicSuffixList
 ): List<Tab> {
     return tabIds
-        ?.mapNotNull { this.findSessionById(it) }
-        ?.map { it.toTab(store, publicSuffixList) }
-        ?: emptyList()
+        ?.mapNotNull { id -> findTab(id) }
+        ?.map { it.toTab(this, publicSuffixList) }
+        .orEmpty()
+}
+
+private fun TabSessionState.toTab(
+    state: BrowserState,
+    publicSuffixList: PublicSuffixList,
+    selected: Boolean? = null
+): Tab {
+    val url = readerState.activeUrl ?: content.url
+    return Tab(
+        sessionId = this.id,
+        url = url,
+        hostname = url.toShortUrl(publicSuffixList),
+        title = content.title,
+        selected = selected,
+        icon = content.icon,
+        mediaState = state.getMediaStateForSession(this.id)
+    )
 }

app/src/main/java/org/mozilla/fenix/collections/TabDiffUtil.kt

@@ -10,7 +10,6 @@ import org.mozilla.fenix.home.Tab
 /**
  * Diff callback for comparing tab lists with selected state.
  */
-@Suppress("LongParameterList")
 internal class TabDiffUtil(
     private val old: List<Tab>,
     private val new: List<Tab>,

app/src/main/java/org/mozilla/fenix/components/BackgroundServices.kt

@@ -47,6 +47,7 @@ import org.mozilla.fenix.utils.Settings
  * background worker.
  */
 @Mockable
+@Suppress("LongParameterList")
 class BackgroundServices(
     private val context: Context,
     private val push: Push,

app/src/main/java/org/mozilla/fenix/components/Core.kt

@@ -43,10 +43,10 @@ import mozilla.components.feature.webnotifications.WebNotificationFeature
 import mozilla.components.lib.dataprotect.SecureAbove22Preferences
 import mozilla.components.lib.dataprotect.generateEncryptionKey
 import mozilla.components.service.digitalassetlinks.RelationChecker
-import mozilla.components.service.digitalassetlinks.api.DigitalAssetLinksApi
+import mozilla.components.service.digitalassetlinks.local.StatementApi
+import mozilla.components.service.digitalassetlinks.local.StatementRelationChecker
 import mozilla.components.service.sync.logins.SyncableLoginsStorage
 import org.mozilla.fenix.AppRequestInterceptor
-import org.mozilla.fenix.BuildConfig.DIGITAL_ASSET_LINKS_TOKEN
 import org.mozilla.fenix.Config
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
@@ -147,7 +147,7 @@ class Core(private val context: Context) {
      * The [RelationChecker] checks Digital Asset Links relationships for Trusted Web Activities.
      */
     val relationChecker: RelationChecker by lazy {
-        DigitalAssetLinksApi(client, DIGITAL_ASSET_LINKS_TOKEN)
+        StatementRelationChecker(StatementApi(client))
     }
 
     /**

app/src/main/java/org/mozilla/fenix/components/InflationAwareFeature.kt

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components
 
 import android.view.View

app/src/main/java/org/mozilla/fenix/components/IntentProcessors.kt

@@ -25,6 +25,7 @@ import org.mozilla.fenix.utils.Mockable
  * Component group for miscellaneous components.
  */
 @Mockable
+@Suppress("LongParameterList")
 class IntentProcessors(
     private val context: Context,
     private val sessionManager: SessionManager,

app/src/main/java/org/mozilla/fenix/components/Push.kt

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components
 
 import android.content.Context

app/src/main/java/org/mozilla/fenix/components/StoreProvider.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.components
 

app/src/main/java/org/mozilla/fenix/components/UseCases.kt

@@ -27,6 +27,7 @@ import org.mozilla.fenix.utils.Mockable
  * modules and can be triggered by UI interactions.
  */
 @Mockable
+@Suppress("LongParameterList")
 class UseCases(
     private val context: Context,
     private val engine: Engine,

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -50,6 +50,7 @@ import org.mozilla.fenix.GleanMetrics.TopSites
 import org.mozilla.fenix.GleanMetrics.TrackingProtection
 import org.mozilla.fenix.GleanMetrics.UserSpecifiedSearchEngines
 import org.mozilla.fenix.GleanMetrics.VoiceSearch
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.utils.BrowsersCache
@@ -724,10 +725,9 @@ class GleanMetricsService(private val context: Context) : MetricsService {
             }
 
             toolbarPosition.set(
-                if (context.settings().shouldUseBottomToolbar) {
-                    Event.ToolbarPositionChanged.Position.BOTTOM.name
-                } else {
-                    Event.ToolbarPositionChanged.Position.TOP.name
+                when (context.settings().toolbarPosition) {
+                    ToolbarPosition.BOTTOM -> Event.ToolbarPositionChanged.Position.BOTTOM.name
+                    ToolbarPosition.TOP -> Event.ToolbarPositionChanged.Position.TOP.name
                 }
             )
         }

app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarView.kt

@@ -4,47 +4,38 @@
 
 package org.mozilla.fenix.components.toolbar
 
-import android.graphics.Color
-import android.graphics.drawable.ColorDrawable
-import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.LinearLayout
-import android.widget.PopupWindow
 import androidx.annotation.LayoutRes
-import androidx.annotation.VisibleForTesting
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.content.ContextCompat
-import androidx.core.view.isVisible
+import androidx.core.view.updateLayoutParams
 import androidx.lifecycle.LifecycleOwner
 import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.appbar.AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS
 import com.google.android.material.appbar.AppBarLayout.LayoutParams.SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
 import com.google.android.material.appbar.AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL
 import com.google.android.material.appbar.AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP
-import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.extensions.LayoutContainer
-import kotlinx.android.synthetic.main.browser_toolbar_popup_window.view.*
 import kotlinx.android.synthetic.main.component_browser_top_toolbar.*
 import kotlinx.android.synthetic.main.component_browser_top_toolbar.view.*
 import mozilla.components.browser.domains.autocomplete.ShippedDomainsProvider
 import mozilla.components.browser.session.Session
-import mozilla.components.browser.state.selector.selectedTab
-import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.browser.toolbar.BrowserToolbar
 import mozilla.components.browser.toolbar.behavior.BrowserToolbarBottomBehavior
 import mozilla.components.browser.toolbar.display.DisplayToolbar
 import mozilla.components.support.ktx.android.util.dpToFloat
 import mozilla.components.support.utils.URLStringUtils
 import org.mozilla.fenix.R
-import org.mozilla.fenix.components.FenixSnackbar
 import org.mozilla.fenix.customtabs.CustomTabToolbarIntegration
 import org.mozilla.fenix.customtabs.CustomTabToolbarMenu
 import org.mozilla.fenix.ext.bookmarkStorage
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.theme.ThemeManager
+import org.mozilla.fenix.utils.ToolbarPopupWindow
+import java.lang.ref.WeakReference
 
 interface BrowserToolbarViewInteractor {
     fun onBrowserToolbarPaste(text: String)
@@ -56,10 +47,11 @@ interface BrowserToolbarViewInteractor {
     fun onScrolled(offset: Int)
     fun onReaderModePressed(enabled: Boolean)
 }
+
 @SuppressWarnings("LargeClass")
 class BrowserToolbarView(
     private val container: ViewGroup,
-    private val shouldUseBottomToolbar: Boolean,
+    private val toolbarPosition: ToolbarPosition,
     private val interactor: BrowserToolbarViewInteractor,
     private val customTabSession: Session?,
     private val lifecycleOwner: LifecycleOwner
@@ -71,9 +63,9 @@ class BrowserToolbarView(
     private val settings = container.context.settings()
 
     @LayoutRes
-    private val toolbarLayout = when {
-        settings.shouldUseBottomToolbar -> R.layout.component_bottom_browser_toolbar
-        else -> R.layout.component_browser_top_toolbar
+    private val toolbarLayout = when (settings.toolbarPosition) {
+        ToolbarPosition.BOTTOM -> R.layout.component_bottom_browser_toolbar
+        ToolbarPosition.TOP -> R.layout.component_browser_top_toolbar
     }
 
     private val layout = LayoutInflater.from(container.context)
@@ -88,63 +80,19 @@ class BrowserToolbarView(
         val isCustomTabSession = customTabSession != null
 
         view.display.setOnUrlLongClickListener {
-            val clipboard = view.context.components.clipboardHandler
-            val customView = LayoutInflater.from(view.context)
-                .inflate(R.layout.browser_toolbar_popup_window, null)
-            val popupWindow = PopupWindow(
-                customView,
-                LinearLayout.LayoutParams.WRAP_CONTENT,
-                view.context.resources.getDimensionPixelSize(R.dimen.context_menu_height),
-                true
+            ToolbarPopupWindow.show(
+                WeakReference(view),
+                customTabSession,
+                interactor::onBrowserToolbarPasteAndGo,
+                interactor::onBrowserToolbarPaste
             )
-            popupWindow.elevation =
-                view.context.resources.getDimension(R.dimen.mozac_browser_menu_elevation)
-
-            // This is a workaround for SDK<23 to allow popup dismissal on outside or back button press
-            // See: https://github.com/mozilla-mobile/fenix/issues/10027
-            popupWindow.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
-
-            customView.paste.isVisible = !clipboard.text.isNullOrEmpty() && !isCustomTabSession
-            customView.paste_and_go.isVisible =
-                !clipboard.text.isNullOrEmpty() && !isCustomTabSession
-
-            customView.copy.setOnClickListener {
-                popupWindow.dismiss()
-                clipboard.text = getUrlForClipboard(it.context.components.core.store, customTabSession)
-
-                FenixSnackbar.make(
-                    view = view,
-                    duration = Snackbar.LENGTH_SHORT,
-                    isDisplayedWithBrowserToolbar = true
-                )
-                    .setText(view.context.getString(R.string.browser_toolbar_url_copied_to_clipboard_snackbar))
-                    .show()
-            }
-
-            customView.paste.setOnClickListener {
-                popupWindow.dismiss()
-                interactor.onBrowserToolbarPaste(clipboard.text!!)
-            }
-
-            customView.paste_and_go.setOnClickListener {
-                popupWindow.dismiss()
-                interactor.onBrowserToolbarPasteAndGo(clipboard.text!!)
-            }
-
-            popupWindow.showAsDropDown(
-                view,
-                view.context.resources.getDimensionPixelSize(R.dimen.context_menu_x_offset),
-                0,
-                Gravity.START
-            )
-
             true
         }
 
         with(container.context) {
             val sessionManager = components.core.sessionManager
 
-            if (!shouldUseBottomToolbar) {
+            if (toolbarPosition == ToolbarPosition.TOP) {
                 val offsetChangedListener =
                     AppBarLayout.OnOffsetChangedListener { _: AppBarLayout?, verticalOffset: Int ->
                         interactor.onScrolled(verticalOffset)
@@ -167,10 +115,9 @@ class BrowserToolbarView(
                     false
                 }
 
-                display.progressGravity = if (shouldUseBottomToolbar) {
-                    DisplayToolbar.Gravity.TOP
-                } else {
-                    DisplayToolbar.Gravity.BOTTOM
+                display.progressGravity = when (toolbarPosition) {
+                    ToolbarPosition.BOTTOM -> DisplayToolbar.Gravity.TOP
+                    ToolbarPosition.TOP -> DisplayToolbar.Gravity.BOTTOM
                 }
 
                 val primaryTextColor = ContextCompat.getColor(
@@ -207,7 +154,7 @@ class BrowserToolbarView(
                     this,
                     sessionManager,
                     customTabSession?.id,
-                    shouldReverseItems = !shouldUseBottomToolbar,
+                    shouldReverseItems = toolbarPosition == ToolbarPosition.TOP,
                     onItemTapped = {
                         interactor.onBrowserToolbarMenuItemTapped(it)
                     }
@@ -216,7 +163,7 @@ class BrowserToolbarView(
                 menuToolbar = DefaultToolbarMenu(
                     context = this,
                     hasAccountProblem = components.backgroundServices.accountManager.accountNeedsReauth(),
-                    shouldReverseItems = !shouldUseBottomToolbar,
+                    shouldReverseItems = toolbarPosition == ToolbarPosition.TOP,
                     onItemTapped = { interactor.onBrowserToolbarMenuItemTapped(it) },
                     lifecycleOwner = lifecycleOwner,
                     sessionManager = sessionManager,
@@ -243,7 +190,7 @@ class BrowserToolbarView(
                     menuToolbar,
                     ShippedDomainsProvider().also { it.initialize(this) },
                     components.core.historyStorage,
-                    components.core.sessionManager,
+                    lifecycleOwner,
                     sessionId = null,
                     isPrivate = sessionManager.selectedSession?.private ?: false,
                     interactor = interactor,
@@ -254,12 +201,15 @@ class BrowserToolbarView(
     }
 
     fun expand() {
-        if (settings.shouldUseBottomToolbar) {
-            (view.layoutParams as CoordinatorLayout.LayoutParams).apply {
-                (behavior as BrowserToolbarBottomBehavior).forceExpand(view)
+        when (settings.toolbarPosition) {
+            ToolbarPosition.BOTTOM -> {
+                (view.layoutParams as CoordinatorLayout.LayoutParams).apply {
+                    (behavior as BrowserToolbarBottomBehavior).forceExpand(view)
+                }
+            }
+            ToolbarPosition.TOP -> {
+                layout.app_bar?.setExpanded(true)
             }
-        } else if (!settings.shouldUseBottomToolbar) {
-            layout.app_bar?.setExpanded(true)
         }
     }
 
@@ -268,43 +218,30 @@ class BrowserToolbarView(
      * Note that the bottom toolbar has a feature flag for being dynamic, so it may not get flags set.
      */
     fun setScrollFlags(shouldDisableScroll: Boolean = false) {
-        if (view.context.settings().shouldUseBottomToolbar) {
-            if (view.layoutParams is CoordinatorLayout.LayoutParams) {
-                (view.layoutParams as CoordinatorLayout.LayoutParams).apply {
+        when (settings.toolbarPosition) {
+            ToolbarPosition.BOTTOM -> {
+                (view.layoutParams as? CoordinatorLayout.LayoutParams)?.apply {
                     behavior = BrowserToolbarBottomBehavior(view.context, null)
                 }
             }
-
-            return
-        }
-
-        val params = view.layoutParams as AppBarLayout.LayoutParams
-
-        params.scrollFlags = when (view.context.settings().shouldUseFixedTopToolbar || shouldDisableScroll) {
-            true -> {
-                // Force expand the toolbar so the user is not stuck with a hidden toolbar
-                expand()
-                0
-            }
-            false -> {
-                SCROLL_FLAG_SCROLL or SCROLL_FLAG_ENTER_ALWAYS or SCROLL_FLAG_SNAP or SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
+            ToolbarPosition.TOP -> {
+                view.updateLayoutParams<AppBarLayout.LayoutParams> {
+                    scrollFlags = if (settings.shouldUseFixedTopToolbar || shouldDisableScroll) {
+                        // Force expand the toolbar so the user is not stuck with a hidden toolbar
+                        expand()
+                        0
+                    } else {
+                        SCROLL_FLAG_SCROLL or
+                                SCROLL_FLAG_ENTER_ALWAYS or
+                                SCROLL_FLAG_SNAP or
+                                SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
+                    }
+                }
             }
         }
-
-        view.layoutParams = params
     }
 
     companion object {
         private const val TOOLBAR_ELEVATION = 16
-
-        @VisibleForTesting
-        internal fun getUrlForClipboard(store: BrowserStore, customTabSession: Session? = null): String? {
-            return if (customTabSession != null) {
-                customTabSession.url
-            } else {
-                val selectedTab = store.state.selectedTab
-                selectedTab?.readerState?.activeUrl ?: selectedTab?.content?.url
-            }
-        }
     }
 }

app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt

@@ -42,7 +42,7 @@ import org.mozilla.fenix.theme.ThemeManager
  * @param lifecycleOwner View lifecycle owner used to determine when to cancel UI jobs.
  * @param bookmarksStorage Used to check if a page is bookmarked.
  */
-@Suppress("LargeClass")
+@Suppress("LargeClass", "LongParameterList")
 class DefaultToolbarMenu(
     private val context: Context,
     private val sessionManager: SessionManager,

app/src/main/java/org/mozilla/fenix/components/toolbar/TabCounterMenuItem.kt

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components.toolbar
 
 sealed class TabCounterMenuItem {

app/src/main/java/org/mozilla/fenix/components/toolbar/TabCounterToolbarButton.kt

@@ -8,17 +8,21 @@ import android.content.Context
 import android.util.TypedValue
 import android.view.View
 import android.view.ViewGroup
+import androidx.lifecycle.LifecycleOwner
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.flow.map
 import mozilla.components.browser.menu.BrowserMenu
 import mozilla.components.browser.menu.BrowserMenuBuilder
 import mozilla.components.browser.menu.item.BrowserMenuDivider
 import mozilla.components.browser.menu.item.BrowserMenuImageText
-import mozilla.components.browser.session.Session
-import mozilla.components.browser.session.SessionManager
+import mozilla.components.browser.state.selector.getNormalOrPrivateTabs
 import mozilla.components.concept.toolbar.Toolbar
+import mozilla.components.lib.state.ext.flowScoped
+import mozilla.components.support.ktx.kotlinx.coroutines.flow.ifChanged
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
-import org.mozilla.fenix.ext.sessionsOfType
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.theme.ThemeManager
 import java.lang.ref.WeakReference
@@ -26,8 +30,9 @@ import java.lang.ref.WeakReference
 /**
  * A [Toolbar.Action] implementation that shows a [TabCounter].
  */
+@OptIn(ExperimentalCoroutinesApi::class)
 class TabCounterToolbarButton(
-    private val sessionManager: SessionManager,
+    private val lifecycleOwner: LifecycleOwner,
     private val isPrivate: Boolean,
     private val onItemTapped: (TabCounterMenuItem) -> Unit = {},
     private val showTabs: () -> Unit
@@ -35,7 +40,11 @@ class TabCounterToolbarButton(
     private var reference: WeakReference<TabCounter> = WeakReference<TabCounter>(null)
 
     override fun createView(parent: ViewGroup): View {
-        sessionManager.register(sessionManagerObserver, view = parent)
+        parent.context.components.core.store.flowScoped(lifecycleOwner) { flow ->
+            flow.map { state -> state.getNormalOrPrivateTabs(isPrivate).size }
+                .ifChanged()
+                .collect { tabs -> updateCount(tabs) }
+        }
 
         val view = TabCounter(parent.context).apply {
             reference = WeakReference(this)
@@ -50,10 +59,11 @@ class TabCounterToolbarButton(
 
             addOnAttachStateChangeListener(object : View.OnAttachStateChangeListener {
                 override fun onViewAttachedToWindow(v: View?) {
-                    setCount(sessionManager.sessionsOfType(private = isPrivate).count())
+                    setCount(context.components.core.store.state.getNormalOrPrivateTabs(isPrivate).size)
                 }
 
-                override fun onViewDetachedFromWindow(v: View?) { /* no-op */ }
+                override fun onViewDetachedFromWindow(v: View?) { /* no-op */
+                }
             })
         }
 
@@ -70,12 +80,8 @@ class TabCounterToolbarButton(
 
     override fun bind(view: View) = Unit
 
-    private fun updateCount() {
-        val count = sessionManager.sessionsOfType(private = isPrivate).count()
-
-        reference.get()?.let {
-            it.setCountWithAnimation(count)
-        }
+    private fun updateCount(count: Int) {
+        reference.get()?.setCountWithAnimation(count)
     }
 
     private fun getTabContextMenu(context: Context): BrowserMenu {
@@ -113,29 +119,10 @@ class TabCounterToolbarButton(
         )
 
         return BrowserMenuBuilder(
-            if (context.settings().shouldUseBottomToolbar) {
-                menuItems.reversed()
-            } else {
-                menuItems
+            when (context.settings().toolbarPosition) {
+                ToolbarPosition.BOTTOM -> menuItems.reversed()
+                ToolbarPosition.TOP -> menuItems
             }
         ).build(context)
     }
-
-    private val sessionManagerObserver = object : SessionManager.Observer {
-        override fun onSessionAdded(session: Session) {
-            updateCount()
-        }
-
-        override fun onSessionRemoved(session: Session) {
-            updateCount()
-        }
-
-        override fun onSessionsRestored() {
-            updateCount()
-        }
-
-        override fun onAllSessionsRemoved() {
-            updateCount()
-        }
-    }
 }

app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt

@@ -6,10 +6,10 @@ package org.mozilla.fenix.components.toolbar
 
 import android.content.Context
 import androidx.appcompat.content.res.AppCompatResources
+import androidx.lifecycle.LifecycleOwner
 import com.airbnb.lottie.LottieCompositionFactory
 import com.airbnb.lottie.LottieDrawable
 import mozilla.components.browser.domains.autocomplete.DomainAutocompleteProvider
-import mozilla.components.browser.session.SessionManager
 import mozilla.components.browser.toolbar.BrowserToolbar
 import mozilla.components.browser.toolbar.display.DisplayToolbar
 import mozilla.components.concept.engine.Engine
@@ -74,7 +74,7 @@ class DefaultToolbarIntegration(
     toolbarMenu: ToolbarMenu,
     domainAutocompleteProvider: DomainAutocompleteProvider,
     historyStorage: HistoryStorage,
-    sessionManager: SessionManager,
+    lifecycleOwner: LifecycleOwner,
     sessionId: String? = null,
     isPrivate: Boolean,
     interactor: BrowserToolbarViewInteractor,
@@ -135,10 +135,11 @@ class DefaultToolbarIntegration(
         val onTabCounterMenuItemTapped = { item: TabCounterMenuItem ->
             interactor.onTabCounterMenuItemTapped(item)
         }
-        val tabsAction = TabCounterToolbarButton(sessionManager, isPrivate, onTabCounterMenuItemTapped) {
-            toolbar.hideKeyboard()
-            interactor.onTabCounterClicked()
-        }
+        val tabsAction =
+            TabCounterToolbarButton(lifecycleOwner, isPrivate, onTabCounterMenuItemTapped) {
+                toolbar.hideKeyboard()
+                interactor.onTabCounterClicked()
+            }
         toolbar.addBrowserAction(tabsAction)
 
         val engineForSpeculativeConnects = if (!isPrivate) engine else null

app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarPosition.kt

@@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.components.toolbar
+
+import android.view.Gravity
+
+/**
+ * Fenix lets the browser toolbar be placed at either the top or the bottom of the screen.
+ * This enum represents the posible positions.
+ *
+ * @property androidGravity [Gravity] value corresponding to the position.
+ * Used to position related elements such as a CFR tooltip.
+ */
+enum class ToolbarPosition(val androidGravity: Int) {
+    BOTTOM(Gravity.BOTTOM),
+    TOP(Gravity.TOP)
+}

app/src/main/java/org/mozilla/fenix/downloads/DynamicDownloadDialog.kt

@@ -21,8 +21,8 @@ import org.mozilla.fenix.ext.settings
  * [DynamicDownloadDialog] is used to show a view in the current tab to the user, triggered when
  *  downloadFeature.onDownloadStopped gets invoked. It uses [DynamicDownloadDialogBehavior] to
  *  hide when the users scrolls through a website as to not impede his activities.
- * */
-
+ */
+@Suppress("LongParameterList")
 class DynamicDownloadDialog(
     private val container: ViewGroup,
     private val downloadState: DownloadState?,

app/src/main/java/org/mozilla/fenix/ext/Activity.kt

@@ -7,8 +7,6 @@ package org.mozilla.fenix.ext
 import android.app.Activity
 import android.view.View
 import android.view.WindowManager
-import mozilla.components.support.base.log.Log
-import org.mozilla.fenix.perf.Performance
 
 /**
  * Attempts to call immersive mode using the View to hide the status bar and navigation buttons.
@@ -24,17 +22,3 @@ fun Activity.enterToImmersiveMode() {
             or View.SYSTEM_UI_FLAG_FULLSCREEN
             or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
 }
-
-/**
- * Calls [Activity.reportFullyDrawn] while also preventing crashes under some circumstances.
- */
-fun Activity.reportFullyDrawnSafe() {
-    try {
-        reportFullyDrawn()
-    } catch (e: SecurityException) {
-        // This exception is throw on some Samsung devices. We were unable to identify the root
-        // cause but suspect it's related to Samsung security features. See
-        // https://github.com/mozilla-mobile/fenix/issues/12345#issuecomment-655058864 for details.
-        Log.log(Log.Priority.ERROR, Performance.TAG, e, "Unable to call reportFullyDrawn")
-    }
-}

app/src/main/java/org/mozilla/fenix/ext/BrowserState.kt

@@ -0,0 +1,16 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.ext
+
+import mozilla.components.browser.state.state.BrowserState
+import mozilla.components.browser.state.state.MediaState
+
+fun BrowserState.getMediaStateForSession(sessionId: String): MediaState.State {
+    return if (media.aggregate.activeTabId == sessionId) {
+        media.aggregate.state
+    } else {
+        MediaState.State.NONE
+    }
+}

app/src/main/java/org/mozilla/fenix/ext/Context.kt

@@ -9,6 +9,7 @@ import android.content.Context
 import android.view.ContextThemeWrapper
 import android.view.View
 import android.view.ViewGroup
+import android.view.accessibility.AccessibilityManager
 import androidx.annotation.StringRes
 import mozilla.components.browser.search.SearchEngineManager
 import mozilla.components.support.locale.LocaleManager
@@ -81,3 +82,10 @@ fun Context.getStringWithArgSafe(@StringRes resId: Int, formatArg: String): Stri
         return format(localizedContext.getString(resId), formatArg)
     }
 }
+
+/**
+ * Used to obtain a reference to an AccessibilityManager
+ * @return accessibilityManager
+ */
+val Context.accessibilityManager: AccessibilityManager get() =
+    getSystemService(Context.ACCESSIBILITY_SERVICE) as AccessibilityManager

app/src/main/java/org/mozilla/fenix/ext/Session.kt

@@ -1,43 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.fenix.ext
-
-import android.content.Context
-import mozilla.components.browser.session.Session
-import mozilla.components.browser.state.selector.findTab
-import mozilla.components.browser.state.state.MediaState
-import mozilla.components.browser.state.store.BrowserStore
-import mozilla.components.lib.publicsuffixlist.PublicSuffixList
-import org.mozilla.fenix.home.Tab
-
-fun Session.toTab(context: Context, selected: Boolean? = null): Tab =
-    this.toTab(
-        context.components.core.store,
-        context.components.publicSuffixList,
-        selected
-    )
-
-fun Session.toTab(store: BrowserStore, publicSuffixList: PublicSuffixList, selected: Boolean? = null): Tab {
-    val url = store.state.findTab(this.id)?.readerState?.activeUrl ?: this.url
-    return Tab(
-        sessionId = this.id,
-        url = url,
-        hostname = url.toShortUrl(publicSuffixList),
-        title = this.title,
-        selected = selected,
-        icon = this.icon,
-        mediaState = getMediaStateForSession(store, this)
-    )
-}
-
-private fun getMediaStateForSession(store: BrowserStore, session: Session): MediaState.State {
-    // For now we are looking up the media state for this session in the BrowserStore. Eventually
-    // we will migrate away from Session(Manager) and can use BrowserStore and BrowserState directly.
-    return if (store.state.media.aggregate.activeTabId == session.id) {
-        store.state.media.aggregate.state
-    } else {
-        MediaState.State.NONE
-    }
-}

app/src/main/java/org/mozilla/fenix/ext/SessionManager.kt

@@ -11,3 +11,12 @@ import mozilla.components.browser.session.SessionManager
  */
 fun SessionManager.sessionsOfType(private: Boolean) =
     sessions.asSequence().filter { it.private == private }
+
+/**
+ * @return the number of currently active sessions that are neither custom nor private
+ */
+fun SessionManager.normalSessionSize(): Int {
+    return this.sessions.filter { session ->
+        (!session.isCustomTabSession() && !session.private)
+    }.size
+}

app/src/main/java/org/mozilla/fenix/ext/String.kt

@@ -4,13 +4,11 @@
 
 package org.mozilla.fenix.ext
 
-import android.content.Context
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.net.Uri
 import android.util.Patterns
 import android.webkit.URLUtil
-import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory
 import androidx.core.net.toUri
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runBlocking
@@ -94,8 +92,8 @@ private fun Uri.isIpv6(): Boolean {
 /**
  * Trim a host's prefix and suffix
  */
-fun String.urlToTrimmedHost(context: Context): String = runBlocking {
-    urlToTrimmedHost(context.components.publicSuffixList).await()
+fun String.urlToTrimmedHost(publicSuffixList: PublicSuffixList): String = runBlocking {
+    urlToTrimmedHost(publicSuffixList).await()
 }
 
 /**
@@ -115,16 +113,6 @@ fun String.simplifiedUrl(): String {
     return afterScheme
 }
 
-/**
- * Gets a rounded drawable from a URL if possible, else null.
- */
-suspend fun String.toRoundedDrawable(context: Context, client: Client) = bitmapForUrl(this, client)?.let { bitmap ->
-    RoundedBitmapDrawableFactory.create(context.resources, bitmap).also {
-        it.isCircular = true
-        it.setAntiAlias(true)
-    }
-}
-
 suspend fun bitmapForUrl(url: String, client: Client): Bitmap? = withContext(Dispatchers.IO) {
     // Code below will cache it in Gecko's cache, which ensures that as long as we've fetched it once,
     // we will be able to display this avatar as long as the cache isn't purged (e.g. via 'clear user data').

app/src/main/java/org/mozilla/fenix/ext/TabCollection.kt

@@ -9,6 +9,7 @@ import androidx.annotation.ColorInt
 import androidx.core.content.ContextCompat
 import mozilla.components.feature.tab.collections.TabCollection
 import org.mozilla.fenix.R
+import org.mozilla.fenix.collections.DefaultCollectionCreationController
 import kotlin.math.abs
 
 /**
@@ -22,3 +23,17 @@ fun TabCollection.getIconColor(context: Context): Int {
     iconColors.recycle()
     return color
 }
+
+/**
+ * Returns the new default name recommendation for a collection
+ *
+ * Algorithm: Go through all collections, make a list of their names and keep only the default ones.
+ * Then get the numbers from all these default names, compute the maximum number and add one.
+ */
+fun List<TabCollection>.getDefaultCollectionNumber(): Int {
+    return (this
+        .map { it.title }
+        .filter { it.matches(Regex("Collection\\s\\d+")) }
+        .map { Integer.valueOf(it.split(" ")[DefaultCollectionCreationController.DEFAULT_COLLECTION_NUMBER_POSITION]) }
+        .max() ?: 0) + DefaultCollectionCreationController.DEFAULT_INCREMENT_VALUE
+}

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -42,7 +42,6 @@ import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE
-import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.fragment_home.*
 import kotlinx.android.synthetic.main.fragment_home.view.*
@@ -60,9 +59,11 @@ import mozilla.components.browser.menu.item.BrowserMenuImageText
 import mozilla.components.browser.menu.view.MenuButton
 import mozilla.components.browser.session.Session
 import mozilla.components.browser.session.SessionManager
+import mozilla.components.browser.state.selector.getNormalOrPrivateTabs
 import mozilla.components.browser.state.selector.normalTabs
 import mozilla.components.browser.state.selector.privateTabs
 import mozilla.components.browser.state.state.BrowserState
+import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.concept.sync.AccountObserver
 import mozilla.components.concept.sync.AuthType
 import mozilla.components.concept.sync.OAuthAccount
@@ -83,6 +84,7 @@ import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.tips.FenixTipManager
 import org.mozilla.fenix.components.tips.providers.MigrationTipProvider
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.hideToolbar
 import org.mozilla.fenix.ext.metrics
@@ -91,7 +93,6 @@ import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.resetPoliciesAfter
 import org.mozilla.fenix.ext.sessionsOfType
 import org.mozilla.fenix.ext.settings
-import org.mozilla.fenix.ext.toTab
 import org.mozilla.fenix.home.sessioncontrol.DefaultSessionControlController
 import org.mozilla.fenix.home.sessioncontrol.SessionControlInteractor
 import org.mozilla.fenix.home.sessioncontrol.SessionControlView
@@ -100,13 +101,12 @@ import org.mozilla.fenix.onboarding.FenixOnboarding
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.settings.SupportUtils.SumoTopic.HELP
 import org.mozilla.fenix.settings.deletebrowsingdata.deleteAndQuit
-import org.mozilla.fenix.tabtray.TabTrayDialogFragment
 import org.mozilla.fenix.theme.ThemeManager
 import org.mozilla.fenix.utils.FragmentPreDrawManager
+import org.mozilla.fenix.utils.ToolbarPopupWindow
 import org.mozilla.fenix.utils.allowUndo
 import org.mozilla.fenix.whatsnew.WhatsNew
 import java.lang.ref.WeakReference
-import kotlin.math.abs
 import kotlin.math.min
 
 @ExperimentalCoroutinesApi
@@ -120,16 +120,12 @@ class HomeFragment : Fragment() {
     }
 
     private val snackbarAnchorView: View?
-        get() {
-            return if (requireContext().settings().shouldUseBottomToolbar) {
-                toolbarLayout
-            } else {
-                null
-            }
+        get() = when (requireContext().settings().toolbarPosition) {
+            ToolbarPosition.BOTTOM -> toolbarLayout
+            ToolbarPosition.TOP -> null
         }
 
     private val browsingModeManager get() = (activity as HomeActivity).browsingModeManager
-    private var homeAppBarOffset = 0
 
     private val collectionStorageObserver = object : TabCollectionStorage.Observer {
         override fun onCollectionCreated(title: String, sessions: List<Session>) {
@@ -147,8 +143,9 @@ class HomeFragment : Fragment() {
 
     private val sessionManager: SessionManager
         get() = requireComponents.core.sessionManager
+    private val store: BrowserStore
+        get() = requireComponents.core.store
 
-    private lateinit var homeAppBarOffSetListener: AppBarLayout.OnOffsetChangedListener
     private val onboarding by lazy { FenixOnboarding(requireContext()) }
     private lateinit var homeFragmentStore: HomeFragmentStore
     private var _sessionControlInteractor: SessionControlInteractor? = null
@@ -218,7 +215,6 @@ class HomeFragment : Fragment() {
             )
         )
         updateLayout(view)
-        setOffset(view)
         sessionControlView = SessionControlView(
             view.sessionControlRecyclerView,
             sessionControlInteractor,
@@ -253,45 +249,36 @@ class HomeFragment : Fragment() {
     }
 
     private fun updateLayout(view: View) {
-        val shouldUseBottomToolbar = view.context.settings().shouldUseBottomToolbar
-
-        if (!shouldUseBottomToolbar) {
-            view.toolbarLayout.layoutParams = CoordinatorLayout.LayoutParams(
-                ConstraintLayout.LayoutParams.MATCH_PARENT,
-                ConstraintLayout.LayoutParams.WRAP_CONTENT
-            )
-                .apply {
+        when (view.context.settings().toolbarPosition) {
+            ToolbarPosition.TOP -> {
+                view.toolbarLayout.layoutParams = CoordinatorLayout.LayoutParams(
+                    ConstraintLayout.LayoutParams.MATCH_PARENT,
+                    ConstraintLayout.LayoutParams.WRAP_CONTENT
+                ).apply {
                     gravity = Gravity.TOP
                 }
 
-            ConstraintSet().apply {
-                clone(view.toolbarLayout)
-                clear(view.bottom_bar.id, BOTTOM)
-                clear(view.bottomBarShadow.id, BOTTOM)
-                connect(view.bottom_bar.id, TOP, PARENT_ID, TOP)
-                connect(view.bottomBarShadow.id, TOP, view.bottom_bar.id, BOTTOM)
-                connect(view.bottomBarShadow.id, BOTTOM, PARENT_ID, BOTTOM)
-                applyTo(view.toolbarLayout)
+                ConstraintSet().apply {
+                    clone(view.toolbarLayout)
+                    clear(view.bottom_bar.id, BOTTOM)
+                    clear(view.bottomBarShadow.id, BOTTOM)
+                    connect(view.bottom_bar.id, TOP, PARENT_ID, TOP)
+                    connect(view.bottomBarShadow.id, TOP, view.bottom_bar.id, BOTTOM)
+                    connect(view.bottomBarShadow.id, BOTTOM, PARENT_ID, BOTTOM)
+                    applyTo(view.toolbarLayout)
+                }
+
+                view.bottom_bar.background = resources.getDrawable(
+                    ThemeManager.resolveAttribute(R.attr.bottomBarBackgroundTop, requireContext()),
+                    null
+                )
+
+                view.homeAppBar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+                    topMargin = HEADER_MARGIN.dpToPx(resources.displayMetrics)
+                }
             }
-
-            view.bottom_bar.background = resources.getDrawable(
-                ThemeManager.resolveAttribute(R.attr.bottomBarBackgroundTop, requireContext()),
-                null
-            )
-
-            view.homeAppBar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-                topMargin = HEADER_MARGIN.dpToPx(resources.displayMetrics)
+            ToolbarPosition.BOTTOM -> {
             }
-
-            createNewAppBarListener(HEADER_MARGIN.dpToPx(resources.displayMetrics).toFloat())
-            view.homeAppBar.addOnOffsetChangedListener(
-                homeAppBarOffSetListener
-            )
-        } else {
-            createNewAppBarListener(0F)
-            view.homeAppBar.addOnOffsetChangedListener(
-                homeAppBarOffSetListener
-            )
         }
     }
 
@@ -352,6 +339,16 @@ class HomeFragment : Fragment() {
             requireComponents.analytics.metrics.track(Event.SearchBarTapped(Event.SearchBarTapped.Source.HOME))
         }
 
+        view.toolbar_wrapper.setOnLongClickListener {
+            ToolbarPopupWindow.show(
+                WeakReference(view),
+                handlePasteAndGo = sessionControlInteractor::onPasteAndGo,
+                handlePaste = sessionControlInteractor::onPaste,
+                copyVisible = false
+            )
+            true
+        }
+
         view.tab_button.setOnClickListener {
             openTabTray()
         }
@@ -407,46 +404,95 @@ class HomeFragment : Fragment() {
         }
 
         bundleArgs.getString(SESSION_TO_DELETE)?.also {
-            sessionManager.findSessionById(it)?.let { session ->
-                val snapshot = sessionManager.createSessionSnapshot(session)
-                val state = snapshot.engineSession?.saveState()
-                val isSelected =
-                    session.id == requireComponents.core.store.state.selectedTabId ?: false
-
-                val snackbarMessage = if (snapshot.session.private) {
-                    requireContext().getString(R.string.snackbar_private_tab_closed)
-                } else {
-                    requireContext().getString(R.string.snackbar_tab_closed)
-                }
-
-                viewLifecycleOwner.lifecycleScope.allowUndo(
-                    requireView(),
-                    snackbarMessage,
-                    requireContext().getString(R.string.snackbar_deleted_undo),
-                    {
-                        sessionManager.add(
-                            snapshot.session,
-                            isSelected,
-                            engineSessionState = state
-                        )
-                        findNavController().navigate(HomeFragmentDirections.actionHomeFragmentToBrowserFragment(null))
-                    },
-                    operation = { },
-                    anchorView = snackbarAnchorView
-                )
-                requireComponents.useCases.tabsUseCases.removeTab.invoke(session)
+            if (it == ALL_NORMAL_TABS || it == ALL_PRIVATE_TABS) {
+                removeAllTabsAndShowSnackbar(it)
+            } else {
+                removeTabAndShowSnackbar(it)
             }
         }
 
         updateTabCounter(requireComponents.core.store.state)
     }
 
+    private fun removeAllTabsAndShowSnackbar(sessionCode: String) {
+        val tabs = sessionManager.sessionsOfType(private = sessionCode == ALL_PRIVATE_TABS).toList()
+        val selectedIndex = sessionManager
+            .selectedSession?.let { sessionManager.sessions.indexOf(it) } ?: 0
+
+        val snapshot = tabs
+            .map(sessionManager::createSessionSnapshot)
+            .map {
+                it.copy(
+                    engineSession = null,
+                    engineSessionState = it.engineSession?.saveState()
+                )
+            }
+            .let { SessionManager.Snapshot(it, selectedIndex) }
+
+        tabs.forEach {
+            sessionManager.remove(it)
+        }
+
+        val snackbarMessage = if (sessionCode == ALL_PRIVATE_TABS) {
+            getString(R.string.snackbar_private_tabs_closed)
+        } else {
+            getString(R.string.snackbar_tabs_closed)
+        }
+
+        viewLifecycleOwner.lifecycleScope.allowUndo(
+            requireView(),
+            snackbarMessage,
+            requireContext().getString(R.string.snackbar_deleted_undo),
+            {
+                sessionManager.restore(snapshot)
+            },
+            operation = { },
+            anchorView = snackbarAnchorView
+        )
+    }
+
+    private fun removeTabAndShowSnackbar(sessionId: String) {
+        sessionManager.findSessionById(sessionId)?.let { session ->
+            val snapshot = sessionManager.createSessionSnapshot(session)
+            val state = snapshot.engineSession?.saveState()
+            val isSelected =
+                session.id == requireComponents.core.store.state.selectedTabId ?: false
+
+            sessionManager.remove(session)
+
+            val snackbarMessage = if (snapshot.session.private) {
+                requireContext().getString(R.string.snackbar_private_tab_closed)
+            } else {
+                requireContext().getString(R.string.snackbar_tab_closed)
+            }
+
+            viewLifecycleOwner.lifecycleScope.allowUndo(
+                requireView(),
+                snackbarMessage,
+                requireContext().getString(R.string.snackbar_deleted_undo),
+                {
+                    sessionManager.add(
+                        snapshot.session,
+                        isSelected,
+                        engineSessionState = state
+                    )
+                    findNavController().navigate(
+                        HomeFragmentDirections.actionHomeFragmentToBrowserFragment(
+                            null
+                        )
+                    )
+                },
+                operation = { },
+                anchorView = snackbarAnchorView
+            )
+        }
+    }
+
     override fun onDestroyView() {
         super.onDestroyView()
         _sessionControlInteractor = null
         sessionControlView = null
         bundleArgs.clear()
-        requireView().homeAppBar.removeOnOffsetChangedListener(homeAppBarOffSetListener)
         requireActivity().window.clearFlags(FLAG_SECURE)
     }
 
@@ -561,7 +607,6 @@ class HomeFragment : Fragment() {
                 )
             )
         }
-        calculateNewOffset()
     }
 
     private fun recommendPrivateBrowsingShortcut() {
@@ -776,10 +821,6 @@ class HomeFragment : Fragment() {
         }
     }
 
-    private fun getNumberOfSessions(private: Boolean = browsingModeManager.mode.isPrivate): Int {
-        return sessionManager.sessionsOfType(private = private).count()
-    }
-
     private fun registerCollectionStorageObserver() {
         requireComponents.core.tabCollectionStorage.register(collectionStorageObserver, this)
     }
@@ -791,7 +832,9 @@ class HomeFragment : Fragment() {
             viewLifecycleOwner.lifecycleScope.launch {
                 val recyclerView = sessionControlView!!.view
                 delay(ANIM_SCROLL_DELAY)
-                val tabsSize = getNumberOfSessions()
+                val tabsSize = store.state
+                    .getNormalOrPrivateTabs(browsingModeManager.mode.isPrivate)
+                    .size
 
                 var indexOfCollection = tabsSize + NON_TAB_ITEM_NUM
                 changedCollection?.let { changedCollection ->
@@ -890,40 +933,11 @@ class HomeFragment : Fragment() {
         }
     }
 
-    private fun List<Session>.toTabs(): List<Tab> {
-        val selected = sessionManager.selectedSession
-
-        return map {
-            it.toTab(requireContext(), it == selected)
-        }
-    }
-
-    private fun calculateNewOffset() {
-        homeAppBarOffset = ((homeAppBar.layoutParams as CoordinatorLayout.LayoutParams)
-            .behavior as AppBarLayout.Behavior).topAndBottomOffset
-    }
-
-    private fun setOffset(currentView: View) {
-        if (homeAppBarOffset <= 0) {
-            (currentView.homeAppBar.layoutParams as CoordinatorLayout.LayoutParams)
-                .behavior = AppBarLayout.Behavior().apply {
-                topAndBottomOffset = this@HomeFragment.homeAppBarOffset
-            }
-        } else {
-            currentView.homeAppBar.setExpanded(false)
-        }
-    }
-
-    private fun createNewAppBarListener(margin: Float) {
-        homeAppBarOffSetListener =
-            AppBarLayout.OnOffsetChangedListener { appBarLayout, verticalOffset ->
-                val reduceScrollRanged = appBarLayout.totalScrollRange.toFloat() - margin
-                appBarLayout.alpha = 1.0f - abs(verticalOffset / reduceScrollRanged)
-            }
-    }
-
     private fun openTabTray() {
-        TabTrayDialogFragment.show(parentFragmentManager)
+        findNavController().nav(
+            R.id.homeFragment,
+            HomeFragmentDirections.actionGlobalTabTrayDialogFragment()
+        )
     }
 
     private fun updateTabCounter(browserState: BrowserState) {
@@ -938,6 +952,9 @@ class HomeFragment : Fragment() {
     }
 
     companion object {
+        const val ALL_NORMAL_TABS = "all_normal"
+        const val ALL_PRIVATE_TABS = "all_private"
+
         private const val FOCUS_ON_ADDRESS_BAR = "focusOnAddressBar"
         private const val SESSION_TO_DELETE = "session_to_delete"
         private const val ANIMATION_DELAY = 100L

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt

@@ -15,6 +15,7 @@ import mozilla.components.feature.tab.collections.TabCollection
 import mozilla.components.feature.tab.collections.ext.restore
 import mozilla.components.feature.tabs.TabsUseCases
 import mozilla.components.feature.top.sites.TopSite
+import mozilla.components.support.ktx.kotlin.isUrl
 import org.mozilla.fenix.BrowserDirection
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
@@ -24,9 +25,13 @@ import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.components.TopSiteStorage
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
+import org.mozilla.fenix.components.metrics.MetricsUtils
 import org.mozilla.fenix.components.tips.Tip
+import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.nav
 import org.mozilla.fenix.ext.sessionsOfType
+import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.home.HomeFragment
 import org.mozilla.fenix.home.HomeFragmentAction
 import org.mozilla.fenix.home.HomeFragmentDirections
@@ -38,7 +43,7 @@ import mozilla.components.feature.tab.collections.Tab as ComponentTab
  * [HomeFragment] controller. An interface that handles the view manipulation of the Tabs triggered
  * by the Interactor.
  */
-@SuppressWarnings("TooManyFunctions")
+@Suppress("TooManyFunctions")
 interface SessionControlController {
     /**
      * @see [CollectionInteractor.onCollectionAddTabTapped]
@@ -120,15 +125,28 @@ interface SessionControlController {
      */
     fun handleToggleCollectionExpanded(collection: TabCollection, expand: Boolean)
 
+    /**
+     * @see [TipInteractor.onCloseTip]
+     */
     fun handleCloseTip(tip: Tip)
 
+    /**
+     * @see [ToolbarInteractor.onPasteAndGo]
+     */
+    fun handlePasteAndGo(clipboardText: String)
+
+    /**
+     * @see [ToolbarInteractor.onPaste]
+     */
+    fun handlePaste(clipboardText: String)
+
     /**
      * @see [CollectionInteractor.onAddTabsToCollectionTapped]
      */
     fun handleCreateCollection()
 }
 
-@SuppressWarnings("TooManyFunctions", "LargeClass", "LongParameterList")
+@Suppress("TooManyFunctions", "LargeClass")
 class DefaultSessionControlController(
     private val activity: HomeActivity,
     private val engine: Engine,
@@ -192,8 +210,12 @@ class DefaultSessionControlController(
         metrics.track(Event.CollectionTabRemoved)
 
         if (collection.tabs.size == 1) {
-            val title = activity.resources.getString(R.string.delete_tab_and_collection_dialog_title, collection.title)
-            val message = activity.resources.getString(R.string.delete_tab_and_collection_dialog_message)
+            val title = activity.resources.getString(
+                R.string.delete_tab_and_collection_dialog_title,
+                collection.title
+            )
+            val message =
+                activity.resources.getString(R.string.delete_tab_and_collection_dialog_message)
             showDeleteCollectionPrompt(collection, title, message)
         } else {
             viewLifecycleScope.launch(Dispatchers.IO) {
@@ -208,7 +230,8 @@ class DefaultSessionControlController(
     }
 
     override fun handleDeleteCollectionTapped(collection: TabCollection) {
-        val message = activity.resources.getString(R.string.tab_collection_dialog_message, collection.title)
+        val message =
+            activity.resources.getString(R.string.tab_collection_dialog_message, collection.title)
         showDeleteCollectionPrompt(collection, null, message)
     }
 
@@ -254,8 +277,12 @@ class DefaultSessionControlController(
 
     override fun handleSelectTopSite(url: String, isDefault: Boolean) {
         metrics.track(Event.TopSiteOpenInNewTab)
-        if (isDefault) { metrics.track(Event.TopSiteOpenDefault) }
-        if (url == SupportUtils.POCKET_TRENDING_URL) { metrics.track(Event.PocketTopSiteClicked) }
+        if (isDefault) {
+            metrics.track(Event.TopSiteOpenDefault)
+        }
+        if (url == SupportUtils.POCKET_TRENDING_URL) {
+            metrics.track(Event.PocketTopSiteClicked)
+        }
         addTabUseCase.invoke(
             url = url,
             selectTab = true,
@@ -297,6 +324,13 @@ class DefaultSessionControlController(
         fragmentStore.dispatch(HomeFragmentAction.RemoveTip(tip))
     }
 
+    private fun showTabTrayCollectionCreation() {
+        val directions = HomeFragmentDirections.actionGlobalTabTrayDialogFragment(
+            enterMultiselect = true
+        )
+        navController.nav(R.id.homeFragment, directions)
+    }
+
     private fun showCollectionCreationFragment(
         step: SaveCollectionStep,
         selectedTabIds: Array<String>? = null,
@@ -322,7 +356,7 @@ class DefaultSessionControlController(
     }
 
     override fun handleCreateCollection() {
-        showCollectionCreationFragment(step = SaveCollectionStep.SelectTabs)
+        showTabTrayCollectionCreation()
     }
 
     private fun showShareFragment(data: List<ShareData>) {
@@ -331,4 +365,37 @@ class DefaultSessionControlController(
         )
         navController.nav(R.id.homeFragment, directions)
     }
+
+    override fun handlePasteAndGo(clipboardText: String) {
+        activity.openToBrowserAndLoad(
+            searchTermOrURL = clipboardText,
+            newTab = true,
+            from = BrowserDirection.FromHome,
+            engine = activity.components.search.provider.getDefaultEngine(activity)
+        )
+
+        val event = if (clipboardText.isUrl()) {
+            Event.EnteredUrl(false)
+        } else {
+            val searchAccessPoint = Event.PerformedSearch.SearchAccessPoint.ACTION
+            activity.settings().incrementActiveSearchCount()
+            searchAccessPoint.let { sap ->
+                MetricsUtils.createSearchEvent(
+                    activity.components.search.provider.getDefaultEngine(activity),
+                    activity,
+                    sap
+                )
+            }
+        }
+
+        event?.let { activity.metrics.track(it) }
+    }
+
+    override fun handlePaste(clipboardText: String) {
+        val directions = HomeFragmentDirections.actionGlobalSearch(
+            sessionId = null,
+            pastedText = clipboardText
+        )
+        navController.nav(R.id.homeFragment, directions)
+    }
 }

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlInteractor.kt

@@ -95,6 +95,18 @@ interface CollectionInteractor {
     fun onAddTabsToCollectionTapped()
 }
 
+interface ToolbarInteractor {
+    /**
+     * Navigates to browser with clipboard text.
+     */
+    fun onPasteAndGo(clipboardText: String)
+
+    /**
+     * Navigates to search with clipboard text.
+     */
+    fun onPaste(clipboardText: String)
+}
+
 /**
  * Interface for onboarding related actions in the [SessionControlInteractor].
  */
@@ -163,7 +175,8 @@ interface TopSiteInteractor {
 @SuppressWarnings("TooManyFunctions")
 class SessionControlInteractor(
     private val controller: SessionControlController
-) : CollectionInteractor, OnboardingInteractor, TopSiteInteractor, TipInteractor, TabSessionInteractor {
+) : CollectionInteractor, OnboardingInteractor, TopSiteInteractor, TipInteractor,
+    TabSessionInteractor, ToolbarInteractor {
     override fun onCollectionAddTabTapped(collection: TabCollection) {
         controller.handleCollectionAddTabTapped(collection)
     }
@@ -235,4 +248,12 @@ class SessionControlInteractor(
     override fun onPrivateBrowsingLearnMoreClicked() {
         controller.handlePrivateBrowsingLearnMoreClicked()
     }
+
+    override fun onPasteAndGo(clipboardText: String) {
+        controller.handlePasteAndGo(clipboardText)
+    }
+
+    override fun onPaste(clipboardText: String) {
+        controller.handlePaste(clipboardText)
+    }
 }

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlView.kt

@@ -20,7 +20,7 @@ import org.mozilla.fenix.home.OnboardingState
 
 // This method got a little complex with the addition of the tab tray feature flag
 // When we remove the tabs from the home screen this will get much simpler again.
-@SuppressWarnings("LongParameterList", "ComplexMethod")
+@Suppress("ComplexMethod")
 private fun normalModeAdapterItems(
     topSites: List<TopSite>,
     collections: List<TabCollection>,

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/viewholders/onboarding/OnboardingToolbarPositionPickerViewHolder.kt

@@ -10,6 +10,7 @@ import kotlinx.android.synthetic.main.onboarding_toolbar_position_picker.view.*
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.Event.OnboardingToolbarPosition.Position
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.asActivity
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.onboarding.OnboardingRadioButton
@@ -29,10 +30,9 @@ class OnboardingToolbarPositionPickerViewHolder(view: View) : RecyclerView.ViewH
         radioBottomToolbar.addIllustration(view.toolbar_bottom_image)
 
         val settings = view.context.components.settings
-        radio = if (settings.shouldUseBottomToolbar) {
-            radioBottomToolbar
-        } else {
-            radioTopToolbar
+        radio = when (settings.toolbarPosition) {
+            ToolbarPosition.BOTTOM -> radioBottomToolbar
+            ToolbarPosition.TOP -> radioTopToolbar
         }
         radio.updateRadioValue(true)
 

app/src/main/java/org/mozilla/fenix/home/tips/ButtonTipViewHolder.kt

@@ -1,23 +1,32 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.home.tips
 
 import android.view.View
-import androidx.recyclerview.widget.RecyclerView
-import kotlinx.android.synthetic.main.button_tip_item.view.*
+import androidx.core.view.isVisible
+import kotlinx.android.synthetic.main.button_tip_item.*
 import org.mozilla.fenix.BrowserDirection
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
+import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.components.tips.Tip
 import org.mozilla.fenix.components.tips.TipType
 import org.mozilla.fenix.ext.addUnderline
 import org.mozilla.fenix.ext.components
-import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.home.sessioncontrol.SessionControlInteractor
+import org.mozilla.fenix.utils.Settings
+import org.mozilla.fenix.utils.view.ViewHolder
 
 class ButtonTipViewHolder(
-    val view: View,
-    val interactor: SessionControlInteractor
-) : RecyclerView.ViewHolder(view) {
+    view: View,
+    private val interactor: SessionControlInteractor,
+    private val metrics: MetricController = view.context.components.analytics.metrics,
+    private val settings: Settings = view.context.components.settings
+) : ViewHolder(view) {
+
     var tip: Tip? = null
 
     fun bind(tip: Tip) {
@@ -25,44 +34,39 @@ class ButtonTipViewHolder(
 
         this.tip = tip
 
-        view.apply {
-            context.components.analytics.metrics.track(Event.TipDisplayed(tip.identifier))
+        metrics.track(Event.TipDisplayed(tip.identifier))
 
-            tip_header_text.text = tip.title
-            tip_description_text.text = tip.description
-            tip_button.text = tip.type.text
+        tip_header_text.text = tip.title
+        tip_description_text.text = tip.description
+        tip_button.text = tip.type.text
 
-            if (tip.learnMoreURL == null) {
-                tip_learn_more.visibility = View.GONE
-            } else {
-                tip_learn_more.addUnderline()
+        tip_learn_more.isVisible = tip.learnMoreURL != null
+        if (tip.learnMoreURL != null) {
+            tip_learn_more.addUnderline()
 
-                tip_learn_more.setOnClickListener {
-                    (context as HomeActivity).openToBrowserAndLoad(
-                        searchTermOrURL = tip.learnMoreURL,
-                        newTab = true,
-                        from = BrowserDirection.FromHome
-                    )
-                }
-            }
-
-            tip_button.setOnClickListener {
-                tip.type.action.invoke()
-                context.components.analytics.metrics.track(
-                    Event.TipPressed(tip.identifier)
+            tip_learn_more.setOnClickListener {
+                (itemView.context as HomeActivity).openToBrowserAndLoad(
+                    searchTermOrURL = tip.learnMoreURL,
+                    newTab = true,
+                    from = BrowserDirection.FromHome
                 )
             }
+        }
 
-            tip_close.setOnClickListener {
-                context.components.analytics.metrics.track(Event.TipClosed(tip.identifier))
+        tip_button.setOnClickListener {
+            tip.type.action.invoke()
+            metrics.track(Event.TipPressed(tip.identifier))
+        }
 
-                context.settings().preferences
-                    .edit()
-                    .putBoolean(tip.identifier, false)
-                    .apply()
+        tip_close.setOnClickListener {
+            metrics.track(Event.TipClosed(tip.identifier))
 
-                interactor.onCloseTip(tip)
-            }
+            settings.preferences
+                .edit()
+                .putBoolean(tip.identifier, false)
+                .apply()
+
+            interactor.onCloseTip(tip)
         }
     }
 

app/src/main/java/org/mozilla/fenix/library/bookmarks/BookmarkController.kt

@@ -28,7 +28,7 @@ import org.mozilla.fenix.ext.nav
  * [BookmarkFragment] controller.
  * Delegated by View Interactors, handles container business logic and operates changes on it.
  */
-@SuppressWarnings("TooManyFunctions")
+@Suppress("TooManyFunctions")
 interface BookmarkController {
     fun handleBookmarkChanged(item: BookmarkNode)
     fun handleBookmarkTapped(item: BookmarkNode)
@@ -47,7 +47,7 @@ interface BookmarkController {
     fun handleBackPressed()
 }
 
-@SuppressWarnings("TooManyFunctions", "LongParameterList")
+@Suppress("TooManyFunctions")
 class DefaultBookmarkController(
     private val activity: HomeActivity,
     private val navController: NavController,

app/src/main/java/org/mozilla/fenix/library/bookmarks/BookmarkFragment.kt

@@ -51,7 +51,6 @@ import org.mozilla.fenix.ext.nav
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.toShortUrl
 import org.mozilla.fenix.library.LibraryPageFragment
-import org.mozilla.fenix.tabtray.TabTrayDialogFragment
 import org.mozilla.fenix.utils.allowUndo
 
 /**
@@ -240,7 +239,7 @@ class BookmarkFragment : LibraryPageFragment<BookmarkNode>(), UserInteractionHan
 
     private fun showTabTray() {
         invokePendingDeletion()
-        TabTrayDialogFragment.show(parentFragmentManager)
+        navigate(BookmarkFragmentDirections.actionGlobalTabTrayDialogFragment())
     }
 
     private fun navigate(directions: NavDirections) {

app/src/main/java/org/mozilla/fenix/library/history/HistoryController.kt

@@ -1,8 +1,6 @@
-/*
- *  This Source Code Form is subject to the terms of the Mozilla Public
- *  * License, v. 2.0. If a copy of the MPL was not distributed with this
- *  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.library.history
 

app/src/main/java/org/mozilla/fenix/library/history/HistoryFragment.kt

@@ -44,7 +44,6 @@ import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.showToolbar
 import org.mozilla.fenix.ext.toShortUrl
 import org.mozilla.fenix.library.LibraryPageFragment
-import org.mozilla.fenix.tabtray.TabTrayDialogFragment
 import org.mozilla.fenix.utils.allowUndo
 
 @SuppressWarnings("TooManyFunctions", "LargeClass")
@@ -207,7 +206,10 @@ class HistoryFragment : LibraryPageFragment<HistoryItem>(), UserInteractionHandl
 
     private fun showTabTray() {
         invokePendingDeletion()
-        TabTrayDialogFragment.show(parentFragmentManager)
+        findNavController().nav(
+            R.id.historyFragment,
+            HistoryFragmentDirections.actionGlobalTabTrayDialogFragment()
+        )
     }
 
     private fun getMultiSelectSnackBarMessage(historyItems: Set<HistoryItem>): String {
@@ -259,7 +261,10 @@ class HistoryFragment : LibraryPageFragment<HistoryItem>(), UserInteractionHandl
                         launch(Main) {
                             viewModel.invalidate()
                             historyStore.dispatch(HistoryFragmentAction.ExitDeletionMode)
-                            showSnackBar(requireView(), getString(R.string.preferences_delete_browsing_data_snackbar))
+                            showSnackBar(
+                                requireView(),
+                                getString(R.string.preferences_delete_browsing_data_snackbar)
+                            )
                         }
                     }
 

app/src/main/java/org/mozilla/fenix/library/history/HistoryFragmentStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.library.history
 

app/src/main/java/org/mozilla/fenix/library/history/HistoryInteractor.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.library.history
 

app/src/main/java/org/mozilla/fenix/loginexceptions/ExceptionsFragmentStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.loginexceptions
 

app/src/main/java/org/mozilla/fenix/loginexceptions/LoginExceptionsInteractor.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.loginexceptions
 

app/src/main/java/org/mozilla/fenix/perf/Performance.kt

@@ -8,6 +8,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.os.BatteryManager
+import mozilla.components.support.base.log.logger.Logger
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.onboarding.FenixOnboarding
 import android.provider.Settings as AndroidSettings
@@ -17,6 +18,8 @@ import android.provider.Settings as AndroidSettings
  */
 object Performance {
     const val TAG = "FenixPerf"
+    val logger = Logger(TAG)
+
     private const val EXTRA_IS_PERFORMANCE_TEST = "performancetest"
 
     /**

app/src/main/java/org/mozilla/fenix/perf/StartupReportFullyDrawn.kt

@@ -7,9 +7,9 @@ package org.mozilla.fenix.perf
 import android.app.Activity
 import android.view.View
 import androidx.core.view.doOnPreDraw
+import mozilla.components.support.ktx.android.view.reportFullyDrawnSafe
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
-import org.mozilla.fenix.ext.reportFullyDrawnSafe
 import org.mozilla.fenix.home.sessioncontrol.viewholders.topsites.TopSiteItemViewHolder
 import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination.APP_LINK
 import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination.HOMESCREEN
@@ -65,6 +65,6 @@ class StartupReportFullyDrawn {
         // - the difference in timing is minimal (< 7ms on Pixel 2)
         // - if we compare against another app using a preDrawListener, as we are with Fennec, it
         // should be comparable
-        view.doOnPreDraw { activity.reportFullyDrawnSafe() }
+        view.doOnPreDraw { activity.reportFullyDrawnSafe(Performance.logger) }
     }
 }

app/src/main/java/org/mozilla/fenix/search/SearchController.kt

@@ -1,7 +1,6 @@
-/*
- *  This Source Code Form is subject to the terms of the Mozilla Public
- *  * License, v. 2.0. If a copy of the MPL was not distributed with this
- *  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.search
 
@@ -9,6 +8,7 @@ import android.content.Intent
 import androidx.navigation.NavController
 import mozilla.components.browser.search.SearchEngine
 import mozilla.components.browser.session.Session
+import mozilla.components.browser.session.SessionManager
 import mozilla.components.support.ktx.kotlin.isUrl
 import org.mozilla.fenix.BrowserDirection
 import org.mozilla.fenix.HomeActivity
@@ -17,15 +17,14 @@ import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.Event.PerformedSearch.SearchAccessPoint.ACTION
 import org.mozilla.fenix.components.metrics.Event.PerformedSearch.SearchAccessPoint.NONE
 import org.mozilla.fenix.components.metrics.Event.PerformedSearch.SearchAccessPoint.SUGGESTION
+import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.components.metrics.MetricsUtils
 import org.mozilla.fenix.components.searchengine.CustomSearchEngineStore
 import org.mozilla.fenix.crashes.CrashListActivity
-import org.mozilla.fenix.ext.components
-import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.navigateSafe
-import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.settings.SupportUtils.MozillaPage.MANIFESTO
+import org.mozilla.fenix.utils.Settings
 
 /**
  * An interface that handles the view manipulation of the Search, triggered by the Interactor
@@ -43,11 +42,14 @@ interface SearchController {
     fun handleSearchShortcutsButtonClicked()
 }
 
-@Suppress("TooManyFunctions")
+@Suppress("TooManyFunctions", "LongParameterList")
 class DefaultSearchController(
     private val activity: HomeActivity,
+    private val sessionManager: SessionManager,
     private val store: SearchFragmentStore,
     private val navController: NavController,
+    private val settings: Settings,
+    private val metrics: MetricController,
     private val clearToolbarFocus: () -> Unit
 ) : SearchController {
 
@@ -77,7 +79,7 @@ class DefaultSearchController(
         val event = if (url.isUrl()) {
             Event.EnteredUrl(false)
         } else {
-            activity.settings().incrementActiveSearchCount()
+            settings.incrementActiveSearchCount()
 
             val searchAccessPoint = when (store.state.searchAccessPoint) {
                 NONE -> ACTION
@@ -93,7 +95,7 @@ class DefaultSearchController(
             }
         }
 
-        event?.let { activity.metrics.track(it) }
+        event?.let { metrics.track(it) }
     }
 
     override fun handleEditingCancelled() {
@@ -101,7 +103,6 @@ class DefaultSearchController(
     }
 
     override fun handleTextChanged(text: String) {
-        val settings = activity.settings()
         // Display the search shortcuts on each entry of the search fragment (see #5308)
         val textMatchesCurrentUrl = store.state.url == text
         val textMatchesCurrentSearch = store.state.searchTerms == text
@@ -130,11 +131,11 @@ class DefaultSearchController(
             from = BrowserDirection.FromSearch
         )
 
-        activity.metrics.track(Event.EnteredUrl(false))
+        metrics.track(Event.EnteredUrl(false))
     }
 
     override fun handleSearchTermsTapped(searchTerms: String) {
-        activity.settings().incrementActiveSearchCount()
+        settings.incrementActiveSearchCount()
 
         activity.openToBrowserAndLoad(
             searchTermOrURL = searchTerms,
@@ -156,14 +157,14 @@ class DefaultSearchController(
                 sap
             )
         }
-        event?.let { activity.metrics.track(it) }
+        event?.let { metrics.track(it) }
     }
 
     override fun handleSearchShortcutEngineSelected(searchEngine: SearchEngine) {
         store.dispatch(SearchFragmentAction.SearchShortcutEngineSelected(searchEngine))
         val isCustom =
             CustomSearchEngineStore.isCustomSearchEngine(activity, searchEngine.identifier)
-        activity.metrics.track(Event.SearchShortcutSelected(searchEngine, isCustom))
+        metrics.track(Event.SearchShortcutSelected(searchEngine, isCustom))
     }
 
     override fun handleSearchShortcutsButtonClicked() {
@@ -177,14 +178,14 @@ class DefaultSearchController(
     }
 
     override fun handleExistingSessionSelected(session: Session) {
-        activity.components.core.sessionManager.select(session)
+        sessionManager.select(session)
         activity.openToBrowser(
             from = BrowserDirection.FromSearch
         )
     }
 
     override fun handleExistingSessionSelected(tabId: String) {
-        val session = activity.components.core.sessionManager.findSessionById(tabId)
+        val session = sessionManager.findSessionById(tabId)
         if (session != null) {
             handleExistingSessionSelected(session)
         }

app/src/main/java/org/mozilla/fenix/search/SearchFragment.kt

@@ -86,6 +86,7 @@ class SearchFragment : Fragment(), UserInteractionHandler {
         savedInstanceState: Bundle?
     ): View? {
         val activity = activity as HomeActivity
+        val settings = activity.settings()
         val args by navArgs<SearchFragmentArgs>()
 
         val tabId = args.sessionId
@@ -112,13 +113,13 @@ class SearchFragment : Fragment(), UserInteractionHandler {
                     defaultEngineSource = currentSearchEngine,
                     showSearchSuggestions = shouldShowSearchSuggestions(isPrivate),
                     showSearchSuggestionsHint = false,
-                    showSearchShortcuts = requireContext().settings().shouldShowSearchShortcuts &&
+                    showSearchShortcuts = settings.shouldShowSearchShortcuts &&
                             url.isEmpty() &&
                             areShortcutsAvailable,
                     areShortcutsAvailable = areShortcutsAvailable,
-                    showClipboardSuggestions = requireContext().settings().shouldShowClipboardSuggestions,
-                    showHistorySuggestions = requireContext().settings().shouldShowHistorySuggestions,
-                    showBookmarkSuggestions = requireContext().settings().shouldShowBookmarkSuggestions,
+                    showClipboardSuggestions = settings.shouldShowClipboardSuggestions,
+                    showHistorySuggestions = settings.shouldShowHistorySuggestions,
+                    showBookmarkSuggestions = settings.shouldShowBookmarkSuggestions,
                     tabId = tabId,
                     pastedText = args.pastedText,
                     searchAccessPoint = args.searchAccessPoint
@@ -128,8 +129,11 @@ class SearchFragment : Fragment(), UserInteractionHandler {
 
         val searchController = DefaultSearchController(
             activity = activity,
+            sessionManager = requireComponents.core.sessionManager,
             store = searchStore,
             navController = findNavController(),
+            settings = settings,
+            metrics = requireComponents.analytics.metrics,
             clearToolbarFocus = ::clearToolbarFocus
         )
 
@@ -160,7 +164,11 @@ class SearchFragment : Fragment(), UserInteractionHandler {
             BrowserToolbar.Button(
                 ContextCompat.getDrawable(requireContext(), R.drawable.ic_microphone)!!,
                 requireContext().getString(R.string.voice_search_content_description),
-                visible = { requireContext().settings().shouldShowVoiceSearch && speechIsAvailable() },
+                visible = {
+                    currentSearchEngine.searchEngine.identifier.contains("google") &&
+                        speechIsAvailable() &&
+                        settings.shouldShowVoiceSearch
+                },
                 listener = ::launchVoiceSearch
             )
         )

app/src/main/java/org/mozilla/fenix/search/SearchFragmentStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.search
 

app/src/main/java/org/mozilla/fenix/search/toolbar/ToolbarView.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.search.toolbar
 

app/src/main/java/org/mozilla/fenix/settings/CustomizationFragment.kt

@@ -12,6 +12,7 @@ import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.PreferenceFragmentCompat
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
@@ -122,8 +123,9 @@ class CustomizationFragment : PreferenceFragmentCompat() {
             ))
         }
 
-        topPreference.setCheckedWithoutClickListener(!requireContext().settings().shouldUseBottomToolbar)
-        bottomPreference.setCheckedWithoutClickListener(requireContext().settings().shouldUseBottomToolbar)
+        val toolbarPosition = requireContext().settings().toolbarPosition
+        topPreference.setCheckedWithoutClickListener(toolbarPosition == ToolbarPosition.TOP)
+        bottomPreference.setCheckedWithoutClickListener(toolbarPosition == ToolbarPosition.BOTTOM)
 
         addToRadioGroup(topPreference, bottomPreference)
     }

app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt

@@ -5,7 +5,6 @@
 package org.mozilla.fenix.settings
 
 import android.content.ActivityNotFoundException
-import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Build
@@ -13,16 +12,13 @@ import android.os.Bundle
 import android.os.Handler
 import android.provider.Settings
 import android.widget.Toast
-import androidx.appcompat.content.res.AppCompatResources
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.NavDirections
 import androidx.navigation.findNavController
 import androidx.preference.Preference
-import androidx.preference.PreferenceCategory
 import androidx.preference.PreferenceFragmentCompat
 import androidx.recyclerview.widget.RecyclerView
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import mozilla.components.concept.sync.AccountObserver
@@ -41,19 +37,19 @@ import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.ext.showToolbar
-import org.mozilla.fenix.ext.toRoundedDrawable
-import org.mozilla.fenix.settings.account.AccountAuthErrorPreference
-import org.mozilla.fenix.settings.account.AccountPreference
+import org.mozilla.fenix.settings.account.AccountUiView
 import kotlin.system.exitProcess
 
 @Suppress("LargeClass", "TooManyFunctions")
 class SettingsFragment : PreferenceFragmentCompat() {
 
+    private lateinit var accountUiView: AccountUiView
+
     private val accountObserver = object : AccountObserver {
         private fun updateAccountUi(profile: Profile? = null) {
             val context = context ?: return
             lifecycleScope.launch {
-                updateAccountUIState(
+                accountUiView.updateAccountUIState(
                     context = context,
                     profile = profile
                         ?: context.components.backgroundServices.accountManager.accountProfile()
@@ -75,6 +71,13 @@ class SettingsFragment : PreferenceFragmentCompat() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        accountUiView = AccountUiView(
+            fragment = this,
+            accountManager = requireComponents.backgroundServices.accountManager,
+            httpClient = requireComponents.core.client,
+            updateFxASyncOverrideMenu = ::updateFxASyncOverrideMenu
+        )
+
         // Observe account changes to keep the UI up-to-date.
         requireComponents.backgroundServices.accountManager.register(
             accountObserver,
@@ -88,7 +91,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
         // For example, if user is signed-in, and we don't perform this call in onCreate, we'll briefly
         // display a "Sign In" preference, which will then get replaced by the correct account information
         // once this call is ran in onResume shortly after.
-        updateAccountUIState(
+        accountUiView.updateAccountUIState(
             requireContext(),
             requireComponents.backgroundServices.accountManager.accountProfile()
         )
@@ -162,7 +165,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
         setupPreferences()
 
         if (shouldUpdateAccountUIState) {
-            updateAccountUIState(
+            accountUiView.updateAccountUIState(
                 requireContext(),
                 requireComponents.backgroundServices.accountManager.accountProfile()
             )
@@ -295,9 +298,9 @@ class SettingsFragment : PreferenceFragmentCompat() {
             }
         }
 
-        preferenceRemoteDebugging?.setOnPreferenceChangeListener { preference, newValue ->
+        preferenceRemoteDebugging?.setOnPreferenceChangeListener<Boolean> { preference, newValue ->
             preference.context.settings().preferences.edit()
-                .putBoolean(preference.key, newValue as Boolean).apply()
+                .putBoolean(preference.key, newValue).apply()
             requireComponents.core.engine.settings.remoteDebuggingEnabled = newValue
             true
         }
@@ -378,68 +381,6 @@ class SettingsFragment : PreferenceFragmentCompat() {
         }
     }
 
-    /**
-     * Updates the UI to reflect current account state.
-     * Possible conditions are logged-in without problems, logged-out, and logged-in but needs to re-authenticate.
-     */
-    private fun updateAccountUIState(context: Context, profile: Profile?) {
-        val preferenceSignIn =
-            requirePreference<Preference>(R.string.pref_key_sign_in)
-        val preferenceFirefoxAccount =
-            requirePreference<AccountPreference>(R.string.pref_key_account)
-        val preferenceFirefoxAccountAuthError =
-            requirePreference<AccountAuthErrorPreference>(R.string.pref_key_account_auth_error)
-        val accountPreferenceCategory =
-            requirePreference<PreferenceCategory>(R.string.pref_key_account_category)
-
-        val accountManager = requireComponents.backgroundServices.accountManager
-        val account = accountManager.authenticatedAccount()
-
-        updateFxASyncOverrideMenu()
-
-        // Signed-in, no problems.
-        if (account != null && !accountManager.accountNeedsReauth()) {
-            preferenceSignIn.isVisible = false
-
-            profile?.avatar?.url?.let { avatarUrl ->
-                lifecycleScope.launch(Main) {
-                    val roundedDrawable =
-                        avatarUrl.toRoundedDrawable(context, requireComponents.core.client)
-                    preferenceFirefoxAccount.icon =
-                        roundedDrawable ?: AppCompatResources.getDrawable(
-                            context,
-                            R.drawable.ic_account
-                        )
-                }
-            }
-            preferenceSignIn.onPreferenceClickListener = null
-            preferenceFirefoxAccountAuthError.isVisible = false
-            preferenceFirefoxAccount.isVisible = true
-            accountPreferenceCategory.isVisible = true
-
-            preferenceFirefoxAccount.displayName = profile?.displayName
-            preferenceFirefoxAccount.email = profile?.email
-
-            // Signed-in, need to re-authenticate.
-        } else if (account != null && accountManager.accountNeedsReauth()) {
-            preferenceFirefoxAccount.isVisible = false
-            preferenceFirefoxAccountAuthError.isVisible = true
-            accountPreferenceCategory.isVisible = true
-
-            preferenceSignIn.isVisible = false
-            preferenceSignIn.onPreferenceClickListener = null
-
-            preferenceFirefoxAccountAuthError.email = profile?.email
-
-            // Signed-out.
-        } else {
-            preferenceSignIn.isVisible = true
-            preferenceFirefoxAccount.isVisible = false
-            preferenceFirefoxAccountAuthError.isVisible = false
-            accountPreferenceCategory.isVisible = false
-        }
-    }
-
     private fun updateFxASyncOverrideMenu() {
         val preferenceFxAOverride =
             findPreference<Preference>(getPreferenceKey(R.string.pref_key_override_fxa_server))

app/src/main/java/org/mozilla/fenix/settings/SharedPreferenceUpdater.kt

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.settings
 
 import androidx.core.content.edit

app/src/main/java/org/mozilla/fenix/settings/about/viewholders/AboutItemViewHolder.kt

@@ -1,4 +1,4 @@
- /* This Source Code Form is subject to the terms of the Mozilla Public
+/* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 

app/src/main/java/org/mozilla/fenix/settings/account/AccountSettingsFragmentStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.settings.account
 

app/src/main/java/org/mozilla/fenix/settings/account/AccountSettingsInteractor.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.settings.account
 

app/src/main/java/org/mozilla/fenix/settings/account/AccountUiView.kt

@@ -0,0 +1,103 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.settings.account
+
+import android.content.Context
+import androidx.appcompat.content.res.AppCompatResources
+import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory
+import androidx.lifecycle.lifecycleScope
+import androidx.preference.Preference
+import androidx.preference.PreferenceCategory
+import androidx.preference.PreferenceFragmentCompat
+import kotlinx.coroutines.launch
+import mozilla.components.concept.fetch.Client
+import mozilla.components.concept.sync.Profile
+import mozilla.components.service.fxa.manager.FxaAccountManager
+import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.bitmapForUrl
+import org.mozilla.fenix.settings.requirePreference
+
+class AccountUiView(
+    fragment: PreferenceFragmentCompat,
+    private val accountManager: FxaAccountManager,
+    private val httpClient: Client,
+    private val updateFxASyncOverrideMenu: () -> Unit
+) {
+
+    private val lifecycleScope = fragment.viewLifecycleOwner.lifecycleScope
+    private val preferenceSignIn =
+        fragment.requirePreference<Preference>(R.string.pref_key_sign_in)
+    private val preferenceFirefoxAccount =
+        fragment.requirePreference<AccountPreference>(R.string.pref_key_account)
+    private val preferenceFirefoxAccountAuthError =
+        fragment.requirePreference<AccountAuthErrorPreference>(R.string.pref_key_account_auth_error)
+    private val accountPreferenceCategory =
+        fragment.requirePreference<PreferenceCategory>(R.string.pref_key_account_category)
+
+    /**
+     * Updates the UI to reflect current account state.
+     * Possible conditions are logged-in without problems, logged-out, and logged-in but needs to re-authenticate.
+     */
+    fun updateAccountUIState(context: Context, profile: Profile?) {
+        val account = accountManager.authenticatedAccount()
+
+        updateFxASyncOverrideMenu()
+
+        // Signed-in, no problems.
+        if (account != null && !accountManager.accountNeedsReauth()) {
+            preferenceSignIn.isVisible = false
+
+            profile?.avatar?.url?.let { avatarUrl ->
+                lifecycleScope.launch {
+                    val roundedDrawable = toRoundedDrawable(avatarUrl, context)
+                    preferenceFirefoxAccount.icon =
+                        roundedDrawable ?: AppCompatResources.getDrawable(
+                            context,
+                            R.drawable.ic_account
+                        )
+                }
+            }
+
+            preferenceSignIn.onPreferenceClickListener = null
+            preferenceFirefoxAccountAuthError.isVisible = false
+            preferenceFirefoxAccount.isVisible = true
+            accountPreferenceCategory.isVisible = true
+
+            preferenceFirefoxAccount.displayName = profile?.displayName
+            preferenceFirefoxAccount.email = profile?.email
+
+            // Signed-in, need to re-authenticate.
+        } else if (account != null && accountManager.accountNeedsReauth()) {
+            preferenceFirefoxAccount.isVisible = false
+            preferenceFirefoxAccountAuthError.isVisible = true
+            accountPreferenceCategory.isVisible = true
+
+            preferenceSignIn.isVisible = false
+            preferenceSignIn.onPreferenceClickListener = null
+
+            preferenceFirefoxAccountAuthError.email = profile?.email
+
+            // Signed-out.
+        } else {
+            preferenceSignIn.isVisible = true
+            preferenceFirefoxAccount.isVisible = false
+            preferenceFirefoxAccountAuthError.isVisible = false
+            accountPreferenceCategory.isVisible = false
+        }
+    }
+
+    /**
+     * Gets a rounded drawable from a URL if possible, else null.
+     */
+    private suspend fun toRoundedDrawable(
+        url: String,
+        context: Context
+    ) = bitmapForUrl(url, httpClient)?.let { bitmap ->
+        RoundedBitmapDrawableFactory.create(context.resources, bitmap).apply {
+            isCircular = true
+            setAntiAlias(true)
+        }
+    }
+}

app/src/main/java/org/mozilla/fenix/settings/logins/SortingStrategy.kt

@@ -4,20 +4,19 @@
 
 package org.mozilla.fenix.settings.logins
 
-import android.content.Context
+import mozilla.components.lib.publicsuffixlist.PublicSuffixList
 import org.mozilla.fenix.ext.urlToTrimmedHost
 
 sealed class SortingStrategy {
     abstract operator fun invoke(logins: List<SavedLogin>): List<SavedLogin>
-    abstract val appContext: Context
 
-    data class Alphabetically(override val appContext: Context) : SortingStrategy() {
+    data class Alphabetically(private val publicSuffixList: PublicSuffixList) : SortingStrategy() {
         override fun invoke(logins: List<SavedLogin>): List<SavedLogin> {
-            return logins.sortedBy { it.origin.urlToTrimmedHost(appContext) }
+            return logins.sortedBy { it.origin.urlToTrimmedHost(publicSuffixList) }
         }
     }
 
-    data class LastUsed(override val appContext: Context) : SortingStrategy() {
+    object LastUsed : SortingStrategy() {
         override fun invoke(logins: List<SavedLogin>): List<SavedLogin> {
             return logins.sortedByDescending { it.timeLastUsed }
         }

app/src/main/java/org/mozilla/fenix/settings/logins/fragment/SavedLoginsFragment.kt

@@ -6,12 +6,12 @@ package org.mozilla.fenix.settings.logins.fragment
 
 import android.os.Bundle
 import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
 import android.view.inputmethod.EditorInfo
-import android.view.Menu
-import android.view.MenuInflater
 import android.widget.FrameLayout
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.SearchView
@@ -31,17 +31,18 @@ import org.mozilla.fenix.R
 import org.mozilla.fenix.components.StoreProvider
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.redirectToReAuth
+import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.ext.showToolbar
 import org.mozilla.fenix.settings.logins.LoginsAction
 import org.mozilla.fenix.settings.logins.LoginsFragmentStore
-import org.mozilla.fenix.settings.logins.controller.LoginsListController
 import org.mozilla.fenix.settings.logins.LoginsListState
-import org.mozilla.fenix.settings.logins.interactor.SavedLoginsInteractor
 import org.mozilla.fenix.settings.logins.SavedLoginsSortingStrategyMenu
-import org.mozilla.fenix.settings.logins.view.SavedLoginsListView
 import org.mozilla.fenix.settings.logins.SortingStrategy
+import org.mozilla.fenix.settings.logins.controller.LoginsListController
 import org.mozilla.fenix.settings.logins.controller.SavedLoginsStorageController
+import org.mozilla.fenix.settings.logins.interactor.SavedLoginsInteractor
+import org.mozilla.fenix.settings.logins.view.SavedLoginsListView
 
 @SuppressWarnings("TooManyFunctions")
 class SavedLoginsFragment : Fragment() {
@@ -228,16 +229,14 @@ class SavedLoginsFragment : Fragment() {
                     SavedLoginsSortingStrategyMenu.Item.AlphabeticallySort -> {
                         savedLoginsInteractor.onSortingStrategyChanged(
                             SortingStrategy.Alphabetically(
-                                requireContext().applicationContext
+                                requireComponents.publicSuffixList
                             )
                         )
                     }
 
                     SavedLoginsSortingStrategyMenu.Item.LastUsedSort -> {
                         savedLoginsInteractor.onSortingStrategyChanged(
-                            SortingStrategy.LastUsed(
-                                requireContext().applicationContext
-                            )
+                            SortingStrategy.LastUsed
                         )
                     }
                 }

app/src/main/java/org/mozilla/fenix/settings/quicksettings/ext/PhoneFeatureExt.kt

@@ -17,7 +17,15 @@ import org.mozilla.fenix.utils.Settings
 fun PhoneFeature.shouldBeVisible(
     sitePermissions: SitePermissions?,
     settings: Settings
-) = getStatus(sitePermissions, settings) != SitePermissions.Status.NO_DECISION
+): Boolean {
+    // We have to check if the site have a site permission exception,
+    // if it doesn't the feature shouldn't be visible
+    return if (sitePermissions == null) {
+        false
+    } else {
+        getStatus(sitePermissions, settings) != SitePermissions.Status.NO_DECISION
+    }
+}
 
 /**
  * Common [PhoneFeature] extensions used for **quicksettings**.

app/src/main/java/org/mozilla/fenix/settings/search/AddSearchEngineFragment.kt

@@ -14,6 +14,7 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.widget.CompoundButton
+import android.widget.LinearLayout
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
@@ -93,7 +94,7 @@ class AddSearchEngineFragment : Fragment(), CompoundButton.OnCheckedChangeListen
 
         availableEngines.forEachIndexed(setupSearchEngineItem)
 
-        val engineItem = makeCustomButton(layoutInflater, res = resources)
+        val engineItem = makeCustomButton(layoutInflater)
         engineItem.id = CUSTOM_INDEX
         engineItem.radio_button.isChecked = selectedIndex == CUSTOM_INDEX
         engineViews.add(engineItem)
@@ -249,12 +250,11 @@ class AddSearchEngineFragment : Fragment(), CompoundButton.OnCheckedChangeListen
         toggleCustomForm(selectedIndex == -1)
     }
 
-    private fun makeCustomButton(layoutInflater: LayoutInflater, res: Resources): View {
+    private fun makeCustomButton(layoutInflater: LayoutInflater): View {
         val wrapper = layoutInflater
             .inflate(R.layout.custom_search_engine_radio_button, null) as ConstraintLayout
         wrapper.setOnClickListener { wrapper.radio_button.isChecked = true }
         wrapper.radio_button.setOnCheckedChangeListener(this)
-        wrapper.minHeight = res.getDimensionPixelSize(R.dimen.radio_button_preference_height)
         return wrapper
     }
 
@@ -271,7 +271,7 @@ class AddSearchEngineFragment : Fragment(), CompoundButton.OnCheckedChangeListen
         res: Resources
     ): View {
         val wrapper = layoutInflater
-            .inflate(R.layout.search_engine_radio_button, null) as ConstraintLayout
+            .inflate(R.layout.search_engine_radio_button, null) as LinearLayout
         wrapper.setOnClickListener { wrapper.radio_button.isChecked = true }
         wrapper.radio_button.setOnCheckedChangeListener(this)
         wrapper.engine_text.text = engine.name
@@ -280,7 +280,6 @@ class AddSearchEngineFragment : Fragment(), CompoundButton.OnCheckedChangeListen
         engineIcon.setBounds(0, 0, iconSize, iconSize)
         wrapper.engine_icon.setImageDrawable(engineIcon)
         wrapper.overflow_menu.visibility = View.GONE
-        wrapper.minHeight = res.getDimensionPixelSize(R.dimen.radio_button_preference_height)
         return wrapper
     }
 

app/src/main/java/org/mozilla/fenix/settings/search/SearchEngineListPreference.kt

@@ -12,8 +12,8 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.CompoundButton
+import android.widget.LinearLayout
 import android.widget.RadioGroup
-import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.view.isVisible
 import androidx.navigation.Navigation
 import androidx.preference.Preference
@@ -117,9 +117,10 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
         res: Resources,
         allowDeletion: Boolean
     ): View {
-        val isCustomSearchEngine = CustomSearchEngineStore.isCustomSearchEngine(context, engine.identifier)
+        val isCustomSearchEngine =
+            CustomSearchEngineStore.isCustomSearchEngine(context, engine.identifier)
 
-        val wrapper = layoutInflater.inflate(itemResId, null) as ConstraintLayout
+        val wrapper = layoutInflater.inflate(itemResId, null) as LinearLayout
         wrapper.setOnClickListener { wrapper.radio_button.isChecked = true }
         wrapper.radio_button.setOnCheckedChangeListener(this)
         wrapper.engine_text.text = engine.name
@@ -132,7 +133,11 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
                 onItemTapped = {
                     when (it) {
                         is SearchEngineMenu.Item.Edit -> editCustomSearchEngine(engine)
-                        is SearchEngineMenu.Item.Delete -> deleteSearchEngine(context, engine, isCustomSearchEngine)
+                        is SearchEngineMenu.Item.Delete -> deleteSearchEngine(
+                            context,
+                            engine,
+                            isCustomSearchEngine
+                        )
                     }
                 }
             ).menuBuilder.build(context).show(wrapper.overflow_menu)
@@ -146,7 +151,8 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
 
     override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
         searchEngineList.list.forEach { engine ->
-            val wrapper: ConstraintLayout = searchEngineGroup?.findViewWithTag(engine.identifier) ?: return
+            val wrapper: LinearLayout =
+                searchEngineGroup?.findViewWithTag(engine.identifier) ?: return
 
             when (wrapper.radio_button == buttonView) {
                 true -> onSearchEngineSelected(engine)
@@ -165,12 +171,20 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
         Navigation.findNavController(searchEngineGroup!!).navigate(directions)
     }
 
-    private fun deleteSearchEngine(context: Context, engine: SearchEngine, isCustomSearchEngine: Boolean) {
+    private fun deleteSearchEngine(
+        context: Context,
+        engine: SearchEngine,
+        isCustomSearchEngine: Boolean
+    ) {
         val isDefaultEngine = engine == context.components.search.provider.getDefaultEngine(context)
         val initialEngineList = searchEngineList.copy()
         val initialDefaultEngine = searchEngineList.default
 
-        context.components.search.provider.uninstallSearchEngine(context, engine, isCustomSearchEngine)
+        context.components.search.provider.uninstallSearchEngine(
+            context,
+            engine,
+            isCustomSearchEngine
+        )
 
         MainScope().allowUndo(
             view = context.getRootView()!!,
@@ -178,7 +192,11 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
                 .getString(R.string.search_delete_search_engine_success_message, engine.name),
             undoActionTitle = context.getString(R.string.snackbar_deleted_undo),
             onCancel = {
-                context.components.search.provider.installSearchEngine(context, engine, isCustomSearchEngine)
+                context.components.search.provider.installSearchEngine(
+                    context,
+                    engine,
+                    isCustomSearchEngine
+                )
 
                 searchEngineList = initialEngineList.copy(
                     default = initialDefaultEngine

app/src/main/java/org/mozilla/fenix/shortcut/PwaOnboardingObserver.kt

@@ -6,7 +6,6 @@ package org.mozilla.fenix.shortcut
 
 import androidx.navigation.NavController
 import mozilla.components.browser.session.Session
-import mozilla.components.concept.engine.manifest.WebAppManifest
 import mozilla.components.feature.pwa.WebAppUseCases
 import org.mozilla.fenix.R
 import org.mozilla.fenix.browser.BrowserFragmentDirections
@@ -22,8 +21,8 @@ class PwaOnboardingObserver(
     private val webAppUseCases: WebAppUseCases
 ) : Session.Observer {
 
-    override fun onWebAppManifestChanged(session: Session, manifest: WebAppManifest?) {
-        if (webAppUseCases.isInstallable() && !settings.userKnowsAboutPwas) {
+    override fun onLoadingStateChanged(session: Session, loading: Boolean) {
+        if (!loading && webAppUseCases.isInstallable() && !settings.userKnowsAboutPwas) {
             settings.incrementVisitedInstallableCount()
             if (settings.shouldShowPwaOnboarding) {
                 val directions =

app/src/main/java/org/mozilla/fenix/sync/SyncedTabsAdapter.kt

@@ -8,16 +8,15 @@ import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
-import mozilla.components.concept.sync.Device as SyncDevice
-import mozilla.components.browser.storage.sync.Tab as SyncTab
+import mozilla.components.browser.storage.sync.SyncedDeviceTabs
 import org.mozilla.fenix.sync.SyncedTabsViewHolder.DeviceViewHolder
 import org.mozilla.fenix.sync.SyncedTabsViewHolder.TabViewHolder
+import mozilla.components.browser.storage.sync.Tab as SyncTab
+import mozilla.components.concept.sync.Device as SyncDevice
 
 class SyncedTabsAdapter(
     private val listener: (SyncTab) -> Unit
-) : ListAdapter<SyncedTabsAdapter.AdapterItem, SyncedTabsViewHolder>(
-    DiffCallback
-) {
+) : ListAdapter<SyncedTabsAdapter.AdapterItem, SyncedTabsViewHolder>(DiffCallback) {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SyncedTabsViewHolder {
         val itemView = LayoutInflater.from(parent.context).inflate(viewType, parent, false)
@@ -30,23 +29,35 @@ class SyncedTabsAdapter(
     }
 
     override fun onBindViewHolder(holder: SyncedTabsViewHolder, position: Int) {
-        val item = when (holder) {
-            is DeviceViewHolder -> getItem(position) as AdapterItem.Device
-            is TabViewHolder -> getItem(position) as AdapterItem.Tab
-        }
-        holder.bind(item, listener)
+        holder.bind(getItem(position), listener)
     }
 
-    override fun getItemViewType(position: Int): Int {
-        return when (getItem(position)) {
-            is AdapterItem.Device -> DeviceViewHolder.LAYOUT_ID
-            is AdapterItem.Tab -> TabViewHolder.LAYOUT_ID
+    override fun getItemViewType(position: Int) = when (getItem(position)) {
+        is AdapterItem.Device -> DeviceViewHolder.LAYOUT_ID
+        is AdapterItem.Tab -> TabViewHolder.LAYOUT_ID
+    }
+
+    fun updateData(syncedTabs: List<SyncedDeviceTabs>) {
+        val allDeviceTabs = mutableListOf<AdapterItem>()
+
+        syncedTabs.forEach { (device, tabs) ->
+            if (tabs.isNotEmpty()) {
+                allDeviceTabs.add(AdapterItem.Device(device))
+                tabs.mapTo(allDeviceTabs) { AdapterItem.Tab(it) }
+            }
         }
+
+        submitList(allDeviceTabs)
     }
 
     private object DiffCallback : DiffUtil.ItemCallback<AdapterItem>() {
         override fun areItemsTheSame(oldItem: AdapterItem, newItem: AdapterItem) =
-            areContentsTheSame(oldItem, newItem)
+            when (oldItem) {
+                is AdapterItem.Device ->
+                    newItem is AdapterItem.Device && oldItem.device.id == newItem.device.id
+                is AdapterItem.Tab ->
+                    oldItem == newItem
+            }
 
         @Suppress("DiffUtilEquals")
         override fun areContentsTheSame(oldItem: AdapterItem, newItem: AdapterItem) =

app/src/main/java/org/mozilla/fenix/sync/SyncedTabsLayout.kt

@@ -10,10 +10,10 @@ import android.view.View
 import android.widget.FrameLayout
 import androidx.recyclerview.widget.LinearLayoutManager
 import kotlinx.android.synthetic.main.component_sync_tabs.view.*
-import kotlinx.coroutines.launch
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
 import mozilla.components.browser.storage.sync.SyncedDeviceTabs
 import mozilla.components.feature.syncedtabs.view.SyncedTabsView
 import org.mozilla.fenix.R
@@ -43,15 +43,7 @@ class SyncedTabsLayout @JvmOverloads constructor(
             // We may still be displaying a "loading" spinner, hide it.
             stopLoading()
 
-            val stringResId = when (error) {
-                SyncedTabsView.ErrorType.MULTIPLE_DEVICES_UNAVAILABLE -> R.string.synced_tabs_connect_another_device
-                SyncedTabsView.ErrorType.SYNC_ENGINE_UNAVAILABLE -> R.string.synced_tabs_enable_tab_syncing
-                SyncedTabsView.ErrorType.SYNC_UNAVAILABLE -> R.string.synced_tabs_connect_to_sync_account
-                SyncedTabsView.ErrorType.SYNC_NEEDS_REAUTHENTICATION -> R.string.synced_tabs_reauth
-                SyncedTabsView.ErrorType.NO_TABS_AVAILABLE -> R.string.synced_tabs_no_tabs
-            }
-
-            sync_tabs_status.text = context.getText(stringResId)
+            sync_tabs_status.text = context.getText(stringResourceForError(error))
 
             synced_tabs_list.visibility = View.GONE
             sync_tabs_status.visibility = View.VISIBLE
@@ -65,19 +57,7 @@ class SyncedTabsLayout @JvmOverloads constructor(
             synced_tabs_list.visibility = View.VISIBLE
             sync_tabs_status.visibility = View.GONE
 
-            val allDeviceTabs = emptyList<SyncedTabsAdapter.AdapterItem>().toMutableList()
-
-            syncedTabs.forEach { (device, tabs) ->
-                if (tabs.isEmpty()) {
-                    return@forEach
-                }
-
-                val deviceTabs = tabs.map { SyncedTabsAdapter.AdapterItem.Tab(it) }
-
-                allDeviceTabs += listOf(SyncedTabsAdapter.AdapterItem.Device(device)) + deviceTabs
-            }
-
-            adapter.submitList(allDeviceTabs)
+            adapter.updateData(syncedTabs)
         }
     }
 
@@ -110,5 +90,13 @@ class SyncedTabsLayout @JvmOverloads constructor(
             SyncedTabsView.ErrorType.MULTIPLE_DEVICES_UNAVAILABLE,
             SyncedTabsView.ErrorType.NO_TABS_AVAILABLE -> true
         }
+
+        internal fun stringResourceForError(error: SyncedTabsView.ErrorType) = when (error) {
+            SyncedTabsView.ErrorType.MULTIPLE_DEVICES_UNAVAILABLE -> R.string.synced_tabs_connect_another_device
+            SyncedTabsView.ErrorType.SYNC_ENGINE_UNAVAILABLE -> R.string.synced_tabs_enable_tab_syncing
+            SyncedTabsView.ErrorType.SYNC_UNAVAILABLE -> R.string.synced_tabs_connect_to_sync_account
+            SyncedTabsView.ErrorType.SYNC_NEEDS_REAUTHENTICATION -> R.string.synced_tabs_reauth
+            SyncedTabsView.ErrorType.NO_TABS_AVAILABLE -> R.string.synced_tabs_no_tabs
+        }
     }
 }

app/src/main/java/org/mozilla/fenix/tabtray/CollectionsAdapter.kt

@@ -0,0 +1,72 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.tabtray
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import android.widget.CheckedTextView
+import androidx.annotation.VisibleForTesting
+import androidx.core.content.ContextCompat
+import androidx.recyclerview.widget.RecyclerView
+import mozilla.components.support.ktx.android.util.dpToPx
+import org.mozilla.fenix.R
+
+internal class CollectionsAdapter(
+    private val collections: Array<String>,
+    private val onNewCollectionClicked: () -> Unit
+) : RecyclerView.Adapter<CollectionsAdapter.CollectionItemViewHolder>() {
+
+    @VisibleForTesting
+    internal var checkedPosition = 1
+
+    class CollectionItemViewHolder(val textView: CheckedTextView) :
+        RecyclerView.ViewHolder(textView)
+
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int
+    ): CollectionItemViewHolder {
+        val textView = LayoutInflater.from(parent.context)
+            .inflate(R.layout.collection_dialog_list_item, parent, false) as CheckedTextView
+        return CollectionItemViewHolder(textView)
+    }
+
+    override fun onBindViewHolder(holder: CollectionItemViewHolder, position: Int) {
+        if (position == 0) {
+            val displayMetrics = holder.textView.context.resources.displayMetrics
+            holder.textView.setPadding(NEW_COLLECTION_PADDING_START.dpToPx(displayMetrics), 0, 0, 0)
+            holder.textView.compoundDrawablePadding =
+                NEW_COLLECTION_DRAWABLE_PADDING.dpToPx(displayMetrics)
+            holder.textView.setCompoundDrawablesWithIntrinsicBounds(
+                ContextCompat.getDrawable(
+                    holder.textView.context,
+                    R.drawable.ic_new
+                ), null, null, null
+            )
+        } else {
+            holder.textView.isChecked = checkedPosition == position
+        }
+
+        holder.textView.setOnClickListener {
+            if (position == 0) {
+                onNewCollectionClicked()
+            } else if (checkedPosition != position) {
+                notifyItemChanged(position)
+                notifyItemChanged(checkedPosition)
+                checkedPosition = position
+            }
+        }
+        holder.textView.text = collections[position]
+    }
+
+    override fun getItemCount() = collections.size
+
+    fun getSelectedCollection() = checkedPosition - 1
+
+    companion object {
+        private const val NEW_COLLECTION_PADDING_START = 24
+        private const val NEW_COLLECTION_DRAWABLE_PADDING = 28
+    }
+}

app/src/main/java/org/mozilla/fenix/tabtray/FenixTabsAdapter.kt

@@ -6,26 +6,41 @@ package org.mozilla.fenix.tabtray
 
 import android.content.Context
 import android.view.LayoutInflater
+import android.view.View
+import androidx.core.view.isVisible
+import kotlinx.android.synthetic.main.tab_tray_item.view.*
 import mozilla.components.browser.tabstray.TabViewHolder
 import mozilla.components.browser.tabstray.TabsAdapter
+import mozilla.components.concept.tabstray.Tab
 import mozilla.components.concept.tabstray.Tabs
 import mozilla.components.support.images.loader.ImageLoader
 import org.mozilla.fenix.R
+import org.mozilla.fenix.components.metrics.Event
+import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.metrics
 
 class FenixTabsAdapter(
-    context: Context,
+    private val context: Context,
     imageLoader: ImageLoader
 ) : TabsAdapter(
-    viewHolderProvider = { parentView, _ ->
+    viewHolderProvider = { parentView ->
         TabTrayViewHolder(
             LayoutInflater.from(context).inflate(
                 R.layout.tab_tray_item,
                 parentView,
-                false),
+                false
+            ),
             imageLoader
         )
     }
 ) {
+    var tabTrayInteractor: TabTrayInteractor? = null
+
+    private val mode: TabTrayDialogFragmentState.Mode?
+        get() = tabTrayInteractor?.onModeRequested()
+
+    val selectedItems get() = mode?.selectedItems ?: setOf()
+
     var onTabsUpdated: (() -> Unit)? = null
     var tabCount = 0
 
@@ -35,9 +50,59 @@ class FenixTabsAdapter(
         tabCount = tabs.list.size
     }
 
+    override fun onBindViewHolder(
+        holder: TabViewHolder,
+        position: Int,
+        payloads: MutableList<Any>
+    ) {
+        if (payloads.isNullOrEmpty()) {
+            onBindViewHolder(holder, position)
+            return
+        }
+
+        holder.tab?.let { showCheckedIfSelected(it, holder.itemView) }
+    }
+
     override fun onBindViewHolder(holder: TabViewHolder, position: Int) {
         super.onBindViewHolder(holder, position)
         val newIndex = tabCount - position - 1
         (holder as TabTrayViewHolder).updateAccessibilityRowIndex(holder.itemView, newIndex)
+
+        holder.tab?.let { tab ->
+            showCheckedIfSelected(tab, holder.itemView)
+
+            val tabIsPrivate =
+                context.components.core.sessionManager.findSessionById(tab.id)?.private == true
+            if (!tabIsPrivate) {
+                holder.itemView.setOnLongClickListener {
+                    if (mode is TabTrayDialogFragmentState.Mode.Normal) {
+                        context.metrics.track(Event.CollectionTabLongPressed)
+                        tabTrayInteractor?.onAddSelectedTab(
+                            tab
+                        )
+                    }
+                    true
+                }
+            }
+
+            holder.itemView.setOnClickListener {
+                if (mode is TabTrayDialogFragmentState.Mode.MultiSelect) {
+                    if (mode?.selectedItems?.contains(tab) == true) {
+                        tabTrayInteractor?.onRemoveSelectedTab(tab = tab)
+                    } else {
+                        tabTrayInteractor?.onAddSelectedTab(tab = tab)
+                    }
+                } else {
+                    tabTrayInteractor?.onOpenTab(tab = tab)
+                }
+            }
+        }
+    }
+
+    private fun showCheckedIfSelected(tab: Tab, view: View) {
+        val shouldBeChecked =
+            mode is TabTrayDialogFragmentState.Mode.MultiSelect && selectedItems.contains(tab)
+        view.checkmark.isVisible = shouldBeChecked
+        view.selected_mask.isVisible = shouldBeChecked
     }
 }

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayController.kt

@@ -6,76 +6,98 @@ package org.mozilla.fenix.tabtray
 
 import androidx.annotation.VisibleForTesting
 import androidx.navigation.NavController
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import mozilla.components.browser.session.Session
-import mozilla.components.browser.session.SessionManager
 import mozilla.components.concept.engine.prompt.ShareData
+import mozilla.components.concept.tabstray.Tab
+import mozilla.components.feature.tabs.TabsUseCases
 import org.mozilla.fenix.HomeActivity
-import org.mozilla.fenix.R
 import org.mozilla.fenix.browser.browsingmode.BrowsingMode
-import org.mozilla.fenix.collections.SaveCollectionStep
+import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.sessionsOfType
+import org.mozilla.fenix.home.HomeFragment
 
 /**
  * [TabTrayDialogFragment] controller.
  *
  * Delegated by View Interactors, handles container business logic and operates changes on it.
  */
+@Suppress("TooManyFunctions")
 interface TabTrayController {
     fun onNewTabTapped(private: Boolean)
     fun onTabTrayDismissed()
     fun onShareTabsClicked(private: Boolean)
-    fun onSaveToCollectionClicked()
+    fun onSaveToCollectionClicked(selectedTabs: Set<Tab>)
     fun onCloseAllTabsClicked(private: Boolean)
+    fun handleBackPressed(): Boolean
+    fun onModeRequested(): TabTrayDialogFragmentState.Mode
+    fun handleAddSelectedTab(tab: Tab)
+    fun handleRemoveSelectedTab(tab: Tab)
+    fun handleOpenTab(tab: Tab)
+    fun handleEnterMultiselect()
 }
 
+/**
+ * Default behavior of [TabTrayController]. Other implementations are possible.
+ *
+ * @param activity [HomeActivity] used for context and other Android interactions.
+ * @param navController [NavController] used for navigation.
+ * @param dismissTabTray callback allowing to request this entire Fragment to be dismissed.
+ * @param tabTrayDialogFragmentStore [TabTrayDialogFragmentStore] holding the State for all Views displayed
+ * in this Controller's Fragment.
+ * @param dismissTabTrayAndNavigateHome callback allowing showing an undo snackbar after tab deletion.
+ * @param selectTabUseCase [TabsUseCases.SelectTabUseCase] callback allowing for selecting a tab.
+ * @param registerCollectionStorageObserver callback allowing for registering the [TabCollectionStorage.Observer]
+ * when needed.
+ * @param showChooseCollectionDialog callback allowing saving a list of sessions to an existing collection.
+ * @param showAddNewCollectionDialog callback allowing for saving a list of sessions to a new collection.
+ */
 @Suppress("TooManyFunctions")
 class DefaultTabTrayController(
     private val activity: HomeActivity,
     private val navController: NavController,
     private val dismissTabTray: () -> Unit,
-    private val showUndoSnackbar: (String, SessionManager.Snapshot) -> Unit,
-    private val registerCollectionStorageObserver: () -> Unit
+    private val dismissTabTrayAndNavigateHome: (String) -> Unit,
+    private val registerCollectionStorageObserver: () -> Unit,
+    private val tabTrayDialogFragmentStore: TabTrayDialogFragmentStore,
+    private val selectTabUseCase: TabsUseCases.SelectTabUseCase,
+    private val showChooseCollectionDialog: (List<Session>) -> Unit,
+    private val showAddNewCollectionDialog: (List<Session>) -> Unit
 ) : TabTrayController {
+    private val tabCollectionStorage = activity.components.core.tabCollectionStorage
+
     override fun onNewTabTapped(private: Boolean) {
         val startTime = activity.components.core.engine.profiler?.getProfilerTime()
         activity.browsingModeManager.mode = BrowsingMode.fromBoolean(private)
         navController.navigate(TabTrayDialogFragmentDirections.actionGlobalHome(focusOnAddressBar = true))
         dismissTabTray()
-        activity.components.core.engine.profiler?.addMarker("DefaultTabTrayController.onNewTabTapped", startTime)
+        activity.components.core.engine.profiler?.addMarker(
+            "DefaultTabTrayController.onNewTabTapped",
+            startTime
+        )
     }
 
     override fun onTabTrayDismissed() {
         dismissTabTray()
     }
 
-    override fun onSaveToCollectionClicked() {
-        val tabs = getListOfSessions(false)
-        val tabIds = tabs.map { it.id }.toList().toTypedArray()
-        val tabCollectionStorage = activity.components.core.tabCollectionStorage
-
-        val step = when {
-            // Show the SelectTabs fragment if there are multiple opened tabs to select which tabs
-            // you want to save to a collection.
-            tabs.size > 1 -> SaveCollectionStep.SelectTabs
-            // If there is an existing tab collection, show the SelectCollection fragment to save
-            // the selected tab to a collection of your choice.
-            tabCollectionStorage.cachedTabCollections.isNotEmpty() -> SaveCollectionStep.SelectCollection
-            // Show the NameCollection fragment to create a new collection for the selected tab.
-            else -> SaveCollectionStep.NameCollection
+    override fun onSaveToCollectionClicked(selectedTabs: Set<Tab>) {
+        val sessionList = selectedTabs.map {
+            activity.components.core.sessionManager.findSessionById(it.id) ?: return
         }
 
-        if (navController.currentDestination?.id == R.id.collectionCreationFragment) return
-
         // Only register the observer right before moving to collection creation
         registerCollectionStorageObserver()
 
-        val directions = TabTrayDialogFragmentDirections.actionGlobalCollectionCreationFragment(
-            tabIds = tabIds,
-            saveCollectionStep = step,
-            selectedTabIds = tabIds
-        )
-        navController.navigate(directions)
+        when {
+            tabCollectionStorage.cachedTabCollections.isNotEmpty() -> {
+                showChooseCollectionDialog(sessionList)
+            }
+            else -> {
+                showAddNewCollectionDialog(sessionList)
+            }
+        }
     }
 
     override fun onShareTabsClicked(private: Boolean) {
@@ -89,39 +111,48 @@ class DefaultTabTrayController(
         navController.navigate(directions)
     }
 
+    @OptIn(ExperimentalCoroutinesApi::class)
     override fun onCloseAllTabsClicked(private: Boolean) {
-        val sessionManager = activity.components.core.sessionManager
-        val tabs = getListOfSessions(private)
-
-        val selectedIndex = sessionManager
-            .selectedSession?.let { sessionManager.sessions.indexOf(it) } ?: 0
-
-        val snapshot = tabs
-            .map(sessionManager::createSessionSnapshot)
-            .map {
-                it.copy(
-                    engineSession = null,
-                    engineSessionState = it.engineSession?.saveState()
-                )
-            }
-            .let { SessionManager.Snapshot(it, selectedIndex) }
-
-        tabs.forEach {
-            sessionManager.remove(it)
-        }
-
-        val snackbarMessage = if (private) {
-            activity.getString(R.string.snackbar_private_tabs_closed)
+        val sessionsToClose = if (private) {
+            HomeFragment.ALL_PRIVATE_TABS
         } else {
-            activity.getString(R.string.snackbar_tabs_closed)
+            HomeFragment.ALL_NORMAL_TABS
         }
 
-        showUndoSnackbar(snackbarMessage, snapshot)
-        dismissTabTray()
+        dismissTabTrayAndNavigateHome(sessionsToClose)
+    }
+
+    override fun handleAddSelectedTab(tab: Tab) {
+        tabTrayDialogFragmentStore.dispatch(TabTrayDialogFragmentAction.AddItemForCollection(tab))
+    }
+
+    override fun handleRemoveSelectedTab(tab: Tab) {
+        tabTrayDialogFragmentStore.dispatch(TabTrayDialogFragmentAction.RemoveItemForCollection(tab))
+    }
+
+    override fun handleBackPressed(): Boolean {
+        return if (tabTrayDialogFragmentStore.state.mode is TabTrayDialogFragmentState.Mode.MultiSelect) {
+            tabTrayDialogFragmentStore.dispatch(TabTrayDialogFragmentAction.ExitMultiSelectMode)
+            true
+        } else {
+            false
+        }
     }
 
     @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
     private fun getListOfSessions(private: Boolean): List<Session> {
         return activity.components.core.sessionManager.sessionsOfType(private = private).toList()
     }
+
+    override fun onModeRequested(): TabTrayDialogFragmentState.Mode {
+        return tabTrayDialogFragmentStore.state.mode
+    }
+
+    override fun handleOpenTab(tab: Tab) {
+        selectTabUseCase.invoke(tab.id)
+    }
+
+    override fun handleEnterMultiselect() {
+        tabTrayDialogFragmentStore.dispatch(TabTrayDialogFragmentAction.EnterMultiSelectMode)
+    }
 }

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt

@@ -4,51 +4,66 @@
 
 package org.mozilla.fenix.tabtray
 
+import android.app.Dialog
 import android.content.res.Configuration
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
+import android.widget.EditText
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatDialogFragment
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
-import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import kotlinx.android.synthetic.main.component_tabstray.view.*
 import kotlinx.android.synthetic.main.component_tabstray_fab.view.*
 import kotlinx.android.synthetic.main.fragment_tab_tray_dialog.*
 import kotlinx.android.synthetic.main.fragment_tab_tray_dialog.view.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.launch
 import mozilla.components.browser.session.Session
-import mozilla.components.browser.session.SessionManager
-import mozilla.components.browser.state.selector.normalTabs
-import mozilla.components.browser.state.selector.privateTabs
-import mozilla.components.browser.state.state.BrowserState
 import mozilla.components.browser.state.state.TabSessionState
+import mozilla.components.browser.thumbnails.loader.ThumbnailLoader
 import mozilla.components.feature.tab.collections.TabCollection
 import mozilla.components.feature.tabs.TabsUseCases
 import mozilla.components.feature.tabs.tabstray.TabsFeature
 import mozilla.components.lib.state.ext.consumeFrom
+import mozilla.components.support.base.feature.UserInteractionHandler
 import mozilla.components.support.base.feature.ViewBoundFeatureWrapper
+import mozilla.components.support.ktx.android.view.showKeyboard
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
+import org.mozilla.fenix.browser.BrowserFragmentDirections
 import org.mozilla.fenix.components.FenixSnackbar
+import org.mozilla.fenix.components.StoreProvider
 import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
-import org.mozilla.fenix.ext.getRootView
+import org.mozilla.fenix.ext.getDefaultCollectionNumber
+import org.mozilla.fenix.ext.metrics
+import org.mozilla.fenix.ext.normalSessionSize
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
+import org.mozilla.fenix.tabtray.TabTrayDialogFragmentState.Mode
 import org.mozilla.fenix.utils.allowUndo
 
 @SuppressWarnings("TooManyFunctions", "LargeClass")
-class TabTrayDialogFragment : AppCompatDialogFragment() {
+class TabTrayDialogFragment : AppCompatDialogFragment(), UserInteractionHandler {
+    private val args by navArgs<TabTrayDialogFragmentArgs>()
+
     private val tabsFeature = ViewBoundFeatureWrapper<TabsFeature>()
     private var _tabTrayView: TabTrayView? = null
     private val tabTrayView: TabTrayView
         get() = _tabTrayView!!
+    private lateinit var tabTrayDialogStore: TabTrayDialogFragmentStore
 
     private val snackbarAnchor: View?
         get() = if (tabTrayView.fabView.new_tab_button.isVisible) tabTrayView.fabView.new_tab_button
@@ -78,17 +93,36 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         }
     }
 
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        return object : Dialog(requireContext(), this.theme) {
+            override fun onBackPressed() {
+                this@TabTrayDialogFragment.onBackPressed()
+            }
+        }
+    }
+
     private val removeTabUseCase = object : TabsUseCases.RemoveTabUseCase {
         override fun invoke(sessionId: String) {
             requireContext().components.analytics.metrics.track(Event.ClosedExistingTab)
             showUndoSnackbarForTab(sessionId)
-            requireComponents.useCases.tabsUseCases.removeTab(sessionId)
+            removeIfNotLastTab(sessionId)
         }
 
         override fun invoke(session: Session) {
             requireContext().components.analytics.metrics.track(Event.ClosedExistingTab)
             showUndoSnackbarForTab(session.id)
-            requireComponents.useCases.tabsUseCases.removeTab(session)
+            removeIfNotLastTab(session.id)
+        }
+    }
+
+    private fun removeIfNotLastTab(sessionId: String) {
+        // We only want to *immediately* remove a tab if there are more than one in the tab tray
+        // If there is only one, the HomeFragment handles deleting the tab (to better support snackbars)
+        val sessionManager = view?.context?.components?.core?.sessionManager
+        val sessionToRemove = sessionManager?.findSessionById(sessionId)
+
+        if (sessionManager?.sessions?.filter { sessionToRemove?.private == it.private }?.size != 1) {
+            requireComponents.useCases.tabsUseCases.removeTab(sessionId)
         }
     }
 
@@ -101,7 +135,18 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? = inflater.inflate(R.layout.fragment_tab_tray_dialog, container, false)
+    ): View? {
+        tabTrayDialogStore = StoreProvider.get(this) {
+            TabTrayDialogFragmentStore(
+                TabTrayDialogFragmentState(
+                    requireComponents.core.store.state,
+                    if (args.enterMultiselect) Mode.MultiSelect(setOf()) else Mode.Normal
+                )
+            )
+        }
+
+        return inflater.inflate(R.layout.fragment_tab_tray_dialog, container, false)
+    }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
         super.onConfigurationChanged(newConfig)
@@ -120,15 +165,23 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         super.onViewCreated(view, savedInstanceState)
         val isPrivate = (activity as HomeActivity).browsingModeManager.mode.isPrivate
 
+        val thumbnailLoader = ThumbnailLoader(requireContext().components.core.thumbnailStorage)
+        val adapter = FenixTabsAdapter(requireContext(), thumbnailLoader)
+
         _tabTrayView = TabTrayView(
             view.tabLayout,
+            adapter,
             interactor = TabTrayFragmentInteractor(
                 DefaultTabTrayController(
                     activity = (activity as HomeActivity),
                     navController = findNavController(),
                     dismissTabTray = ::dismissAllowingStateLoss,
-                    showUndoSnackbar = ::showUndoSnackbar,
-                    registerCollectionStorageObserver = ::registerCollectionStorageObserver
+                    dismissTabTrayAndNavigateHome = ::dismissTabTrayAndNavigateHome,
+                    registerCollectionStorageObserver = ::registerCollectionStorageObserver,
+                    tabTrayDialogFragmentStore = tabTrayDialogStore,
+                    selectTabUseCase = selectTabUseCase,
+                    showChooseCollectionDialog = ::showChooseCollectionDialog,
+                    showAddNewCollectionDialog = ::showAddNewCollectionDialog
                 )
             ),
             isPrivate = isPrivate,
@@ -145,7 +198,7 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
 
         tabsFeature.set(
             TabsFeature(
-                tabTrayView.view.tabsTray,
+                adapter,
                 view.context.components.core.store,
                 selectTabUseCase,
                 removeTabUseCase,
@@ -176,8 +229,11 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         }
 
         consumeFrom(requireComponents.core.store) {
+            tabTrayDialogStore.dispatch(TabTrayDialogFragmentAction.BrowserStateChanged(it))
+        }
+
+        consumeFrom(tabTrayDialogStore) {
             tabTrayView.updateState(it)
-            navigateHomeIfNeeded(it)
         }
     }
 
@@ -191,11 +247,21 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
 
     private fun showUndoSnackbarForTab(sessionId: String) {
         val sessionManager = view?.context?.components?.core?.sessionManager
+
         val snapshot = sessionManager
             ?.findSessionById(sessionId)?.let {
                 sessionManager.createSessionSnapshot(it)
             } ?: return
 
+        // Check if this is the last tab of this session type
+        val isLastOpenTab =
+            sessionManager.sessions.filter { snapshot.session.private == it.private }.size == 1
+
+        if (isLastOpenTab) {
+            dismissTabTrayAndNavigateHome(sessionId)
+            return
+        }
+
         val state = snapshot.engineSession?.saveState()
         val isSelected = sessionId == requireComponents.core.store.state.selectedTabId ?: false
 
@@ -205,13 +271,8 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
             getString(R.string.snackbar_tab_closed)
         }
 
-        // Check if this is the last tab of this session type
-        val isLastOpenTab = sessionManager.sessions.filter { snapshot.session.private }.size == 1
-        val rootView = if (isLastOpenTab) { requireActivity().getRootView()!! } else { requireView().tabLayout }
-        val anchorView = if (isLastOpenTab) { null } else { snackbarAnchor }
-
-        requireActivity().lifecycleScope.allowUndo(
-            rootView,
+        lifecycleScope.allowUndo(
+            requireView().tabLayout,
             snackbarMessage,
             getString(R.string.snackbar_deleted_undo),
             {
@@ -220,18 +281,14 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
             },
             operation = { },
             elevation = ELEVATION,
-            paddedForBottomToolbar = isLastOpenTab,
-            anchorView = anchorView
+            anchorView = snackbarAnchor
         )
-
-        dismissTabTrayIfNecessary()
     }
 
-    private fun dismissTabTrayIfNecessary() {
-        if (requireComponents.core.sessionManager.sessions.size == 1) {
-            findNavController().popBackStack(R.id.homeFragment, false)
-            dismissAllowingStateLoss()
-        }
+    private fun dismissTabTrayAndNavigateHome(sessionId: String) {
+        val directions = BrowserFragmentDirections.actionGlobalHome(sessionToDelete = sessionId)
+        findNavController().navigate(directions)
+        dismissAllowingStateLoss()
     }
 
     override fun onDestroyView() {
@@ -247,39 +304,10 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         }
     }
 
-    private fun navigateHomeIfNeeded(state: BrowserState) {
-        val shouldPop = if (tabTrayView.isPrivateModeSelected) {
-            state.privateTabs.isEmpty()
-        } else {
-            state.normalTabs.isEmpty()
-        }
-
-        if (shouldPop) {
-            findNavController().popBackStack(R.id.homeFragment, false)
-        }
-    }
-
     private fun registerCollectionStorageObserver() {
         requireComponents.core.tabCollectionStorage.register(collectionStorageObserver, this)
     }
 
-    private fun showUndoSnackbar(snackbarMessage: String, snapshot: SessionManager.Snapshot) {
-        // Warning: removing this definition and using it directly in the onCancel block will fail silently.
-        val sessionManager = view?.context?.components?.core?.sessionManager
-
-        requireActivity().lifecycleScope.allowUndo(
-            requireActivity().getRootView()!!,
-            snackbarMessage,
-            getString(R.string.snackbar_deleted_undo),
-            {
-                sessionManager?.restore(snapshot)
-            },
-            operation = { },
-            elevation = ELEVATION,
-            paddedForBottomToolbar = true
-        )
-    }
-
     private fun showCollectionSnackbar(tabSize: Int, isNewCollection: Boolean = false) {
         view.let {
             val messageStringRes = when {
@@ -313,21 +341,101 @@ class TabTrayDialogFragment : AppCompatDialogFragment() {
         }
     }
 
-    companion object {
-        private const val ELEVATION = 80f
-        private const val FRAGMENT_TAG = "tabTrayDialogFragment"
+    override fun onBackPressed(): Boolean {
+        if (!tabTrayView.onBackPressed()) {
+            dismiss()
+        }
+        return true
+    }
 
-        fun show(fragmentManager: FragmentManager) {
-            // If we've killed the fragmentManager. Let's not try to show the tabs tray.
-            if (fragmentManager.isDestroyed) {
-                return
-            }
+    private fun showChooseCollectionDialog(sessionList: List<Session>) {
+        context?.let {
+            val tabCollectionStorage = it.components.core.tabCollectionStorage
+            val collections =
+                tabCollectionStorage.cachedTabCollections.map { it.title }.toTypedArray()
+            val customLayout =
+                LayoutInflater.from(it).inflate(R.layout.add_new_collection_dialog, null)
+            val list = customLayout.findViewById<RecyclerView>(R.id.recycler_view)
+            list.layoutManager = LinearLayoutManager(it)
 
-            // We want to make sure we don't accidentally show the dialog twice if
-            // a user somehow manages to trigger `show()` twice before we present the dialog.
-            if (fragmentManager.findFragmentByTag(FRAGMENT_TAG) == null) {
-                TabTrayDialogFragment().showNow(fragmentManager, FRAGMENT_TAG)
-            }
+            val builder = AlertDialog.Builder(it).setTitle(R.string.tab_tray_select_collection)
+                .setView(customLayout)
+                .setPositiveButton(android.R.string.ok) { dialog, _ ->
+                    val selectedCollection =
+                        (list.adapter as CollectionsAdapter).getSelectedCollection()
+                    val collection = tabCollectionStorage.cachedTabCollections[selectedCollection]
+                    viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
+                        tabCollectionStorage.addTabsToCollection(collection, sessionList)
+                        it.metrics.track(
+                            Event.CollectionTabsAdded(
+                                it.components.core.sessionManager.normalSessionSize(),
+                                sessionList.size
+                            )
+                        )
+                        launch(Main) {
+                            tabTrayDialogStore.dispatch(TabTrayDialogFragmentAction.ExitMultiSelectMode)
+                            dialog.dismiss()
+                        }
+                    }
+                }.setNegativeButton(android.R.string.cancel) { dialog, _ ->
+                    tabTrayDialogStore.dispatch(TabTrayDialogFragmentAction.ExitMultiSelectMode)
+                    dialog.cancel()
+                }
+
+            val dialog = builder.create()
+            val adapter =
+                CollectionsAdapter(arrayOf(it.getString(R.string.tab_tray_add_new_collection)) + collections) {
+                    dialog.dismiss()
+                    showAddNewCollectionDialog(sessionList)
+                }
+            list.adapter = adapter
+            dialog.show()
         }
     }
+
+    private fun showAddNewCollectionDialog(sessionList: List<Session>) {
+        context?.let {
+            val tabCollectionStorage = it.components.core.tabCollectionStorage
+            val customLayout =
+                LayoutInflater.from(it).inflate(R.layout.name_collection_dialog, null)
+            val collectionNameEditText: EditText =
+                customLayout.findViewById(R.id.collection_name)
+            collectionNameEditText.setText(
+                it.getString(
+                    R.string.create_collection_default_name,
+                    tabCollectionStorage.cachedTabCollections.getDefaultCollectionNumber()
+                )
+            )
+
+            AlertDialog.Builder(it).setTitle(R.string.tab_tray_add_new_collection)
+                .setView(customLayout).setPositiveButton(android.R.string.ok) { dialog, _ ->
+                    viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
+                        tabCollectionStorage.createCollection(
+                            collectionNameEditText.text.toString(),
+                            sessionList
+                        )
+                        it.metrics.track(
+                            Event.CollectionSaved(
+                                it.components.core.sessionManager.normalSessionSize(),
+                                sessionList.size
+                            )
+                        )
+                        launch(Main) {
+                            tabTrayDialogStore.dispatch(TabTrayDialogFragmentAction.ExitMultiSelectMode)
+                            dialog.dismiss()
+                        }
+                    }
+                }.setNegativeButton(android.R.string.cancel) { dialog, _ ->
+                    tabTrayDialogStore.dispatch(TabTrayDialogFragmentAction.ExitMultiSelectMode)
+                    dialog.cancel()
+                }.create().show().also {
+                    collectionNameEditText.setSelection(0, collectionNameEditText.text.length)
+                    collectionNameEditText.showKeyboard()
+                }
+        }
+    }
+
+    companion object {
+        private const val ELEVATION = 80f
+    }
 }

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragmentStore.kt

@@ -0,0 +1,76 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.tabtray
+
+import mozilla.components.browser.state.state.BrowserState
+import mozilla.components.concept.tabstray.Tab
+import mozilla.components.lib.state.Action
+import mozilla.components.lib.state.State
+import mozilla.components.lib.state.Store
+
+/**
+ * The [Store] for holding the [TabTrayDialogFragmentState] and
+ * applying [TabTrayDialogFragmentAction]s.
+ */
+class TabTrayDialogFragmentStore(initialState: TabTrayDialogFragmentState) :
+    Store<TabTrayDialogFragmentState, TabTrayDialogFragmentAction>(
+        initialState,
+        ::tabTrayStateReducer
+    )
+
+/**
+ * Actions to dispatch through the `TabTrayDialogFragmentStore` to modify
+ * `TabTrayDialogFragmentState` through the reducer.
+ */
+sealed class TabTrayDialogFragmentAction : Action {
+    data class BrowserStateChanged(val browserState: BrowserState) : TabTrayDialogFragmentAction()
+    object EnterMultiSelectMode : TabTrayDialogFragmentAction()
+    object ExitMultiSelectMode : TabTrayDialogFragmentAction()
+    data class AddItemForCollection(val item: Tab) : TabTrayDialogFragmentAction()
+    data class RemoveItemForCollection(val item: Tab) : TabTrayDialogFragmentAction()
+}
+
+/**
+ * The state for the Tab Tray Dialog Screen
+ * @property mode Current Mode of Multiselection
+ */
+data class TabTrayDialogFragmentState(val browserState: BrowserState, val mode: Mode) : State {
+    sealed class Mode {
+        open val selectedItems = emptySet<Tab>()
+
+        object Normal : Mode()
+        data class MultiSelect(override val selectedItems: Set<Tab>) : Mode()
+    }
+}
+
+/**
+ * The TabTrayDialogFragmentState Reducer.
+ */
+private fun tabTrayStateReducer(
+    state: TabTrayDialogFragmentState,
+    action: TabTrayDialogFragmentAction
+): TabTrayDialogFragmentState {
+    return when (action) {
+        is TabTrayDialogFragmentAction.BrowserStateChanged -> state.copy(browserState = action.browserState)
+        is TabTrayDialogFragmentAction.AddItemForCollection ->
+            state.copy(mode = TabTrayDialogFragmentState.Mode.MultiSelect(state.mode.selectedItems + action.item))
+        is TabTrayDialogFragmentAction.RemoveItemForCollection -> {
+            val selected = state.mode.selectedItems - action.item
+            state.copy(
+                mode = if (selected.isEmpty()) {
+                    TabTrayDialogFragmentState.Mode.Normal
+                } else {
+                    TabTrayDialogFragmentState.Mode.MultiSelect(selected)
+                }
+            )
+        }
+        is TabTrayDialogFragmentAction.ExitMultiSelectMode -> state.copy(mode = TabTrayDialogFragmentState.Mode.Normal)
+        is TabTrayDialogFragmentAction.EnterMultiSelectMode -> state.copy(
+            mode = TabTrayDialogFragmentState.Mode.MultiSelect(
+                setOf()
+            )
+        )
+    }
+}

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayFragmentInteractor.kt

@@ -4,17 +4,70 @@
 
 package org.mozilla.fenix.tabtray
 
+import mozilla.components.concept.tabstray.Tab
+
+@Suppress("TooManyFunctions")
 interface TabTrayInteractor {
+    /**
+     * Called when user clicks the new tab button.
+     */
     fun onNewTabTapped(private: Boolean)
+
+    /**
+     * Called when tab tray should be dismissed.
+     */
     fun onTabTrayDismissed()
+
+    /**
+     * Called when user clicks the share tabs button.
+     */
     fun onShareTabsClicked(private: Boolean)
-    fun onSaveToCollectionClicked()
+
+    /**
+     * Called when user clicks button to save selected tabs to a collection.
+     */
+    fun onSaveToCollectionClicked(selectedTabs: Set<Tab>)
+
+    /**
+     * Called when user clicks the close all tabs button.
+     */
     fun onCloseAllTabsClicked(private: Boolean)
+
+    /**
+     * Called when the physical back button is clicked.
+     */
+    fun onBackPressed(): Boolean
+
+    /**
+     * Called when a requester needs to know the current mode of the tab tray.
+     */
+    fun onModeRequested(): TabTrayDialogFragmentState.Mode
+
+    /**
+     * Called when a tab should be opened in the browser.
+     */
+    fun onOpenTab(tab: Tab)
+
+    /**
+     * Called when a tab should be selected in multiselect mode.
+     */
+    fun onAddSelectedTab(tab: Tab)
+
+    /**
+     * Called when a tab should be unselected in multiselect mode.
+     */
+    fun onRemoveSelectedTab(tab: Tab)
+
+    /**
+     * Called when multiselect mode should be entered with no tabs selected.
+     */
+    fun onEnterMultiselect()
 }
 
 /**
  * Interactor for the tab tray fragment.
  */
+@Suppress("TooManyFunctions")
 class TabTrayFragmentInteractor(private val controller: TabTrayController) : TabTrayInteractor {
     override fun onNewTabTapped(private: Boolean) {
         controller.onNewTabTapped(private)
@@ -28,11 +81,35 @@ class TabTrayFragmentInteractor(private val controller: TabTrayController) : Tab
         controller.onShareTabsClicked(private)
     }
 
-    override fun onSaveToCollectionClicked() {
-        controller.onSaveToCollectionClicked()
+    override fun onSaveToCollectionClicked(selectedTabs: Set<Tab>) {
+        controller.onSaveToCollectionClicked(selectedTabs)
     }
 
     override fun onCloseAllTabsClicked(private: Boolean) {
         controller.onCloseAllTabsClicked(private)
     }
+
+    override fun onBackPressed(): Boolean {
+        return controller.handleBackPressed()
+    }
+
+    override fun onModeRequested(): TabTrayDialogFragmentState.Mode {
+        return controller.onModeRequested()
+    }
+
+    override fun onAddSelectedTab(tab: Tab) {
+        controller.handleAddSelectedTab(tab)
+    }
+
+    override fun onRemoveSelectedTab(tab: Tab) {
+        controller.handleRemoveSelectedTab(tab)
+    }
+
+    override fun onOpenTab(tab: Tab) {
+        controller.handleOpenTab(tab)
+    }
+
+    override fun onEnterMultiselect() {
+        controller.handleEnterMultiselect()
+    }
 }

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayView.kt

@@ -9,14 +9,18 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.accessibility.AccessibilityEvent
+import androidx.annotation.IdRes
 import androidx.cardview.widget.CardView
+import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.constraintlayout.widget.ConstraintSet
 import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
+import androidx.core.view.updateLayoutParams
 import androidx.lifecycle.LifecycleCoroutineScope
+import androidx.recyclerview.widget.LinearLayoutManager
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.tabs.TabLayout
 import kotlinx.android.extensions.LayoutContainer
-import kotlinx.android.synthetic.main.component_tabstray.*
 import kotlinx.android.synthetic.main.component_tabstray.view.*
 import kotlinx.android.synthetic.main.component_tabstray_fab.view.*
 import kotlinx.android.synthetic.main.tabs_tray_tab_counter.*
@@ -29,7 +33,7 @@ import mozilla.components.browser.menu.item.SimpleBrowserMenuItem
 import mozilla.components.browser.state.selector.normalTabs
 import mozilla.components.browser.state.selector.privateTabs
 import mozilla.components.browser.state.state.BrowserState
-import mozilla.components.browser.tabstray.BrowserTabsTray
+import mozilla.components.support.ktx.android.util.dpToPx
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
@@ -41,6 +45,7 @@ import org.mozilla.fenix.ext.settings
 @Suppress("LongParameterList", "TooManyFunctions", "LargeClass")
 class TabTrayView(
     private val container: ViewGroup,
+    private val tabsAdapter: FenixTabsAdapter,
     private val interactor: TabTrayInteractor,
     isPrivate: Boolean,
     startingInLandscape: Boolean,
@@ -50,16 +55,20 @@ class TabTrayView(
     val fabView = LayoutInflater.from(container.context)
         .inflate(R.layout.component_tabstray_fab, container, true)
 
+    private val hasAccessibilityEnabled = container.context.settings().accessibilityServicesEnabled
+
     val view = LayoutInflater.from(container.context)
         .inflate(R.layout.component_tabstray, container, true)
 
-    val isPrivateModeSelected: Boolean get() = view.tab_layout.selectedTabPosition == PRIVATE_TAB_ID
+    private val isPrivateModeSelected: Boolean get() = view.tab_layout.selectedTabPosition == PRIVATE_TAB_ID
 
     private val behavior = BottomSheetBehavior.from(view.tab_wrapper)
 
     private val tabTrayItemMenu: TabTrayItemMenu
     private var menu: BrowserMenu? = null
 
+    private var tabsTouchHelper: TabsTouchHelper
+
     private var hasLoaded = false
 
     override val containerView: View?
@@ -68,8 +77,6 @@ class TabTrayView(
     init {
         container.context.components.analytics.metrics.track(Event.TabsTrayOpened)
 
-        val hasAccessibilityEnabled = view.context.settings().accessibilityServicesEnabled
-
         toggleFabText(isPrivate)
 
         behavior.addBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
@@ -118,27 +125,34 @@ class TabTrayView(
 
         setTopOffset(startingInLandscape)
 
-        (view.tabsTray as? BrowserTabsTray)?.also { tray ->
-            TabsTouchHelper(tray.tabsAdapter).attachToRecyclerView(tray)
-            (tray.tabsAdapter as? FenixTabsAdapter)?.also { adapter ->
-                adapter.onTabsUpdated = {
-                    if (hasAccessibilityEnabled) {
-                        adapter.notifyDataSetChanged()
-                    }
-                    if (!hasLoaded) {
-                        hasLoaded = true
-                        scrollToTab(view.context.components.core.store.state.selectedTabId)
-                        if (view.context.settings().accessibilityServicesEnabled) {
-                            lifecycleScope.launch {
-                                delay(SELECTION_DELAY.toLong())
-                                lifecycleScope.launch(Main) {
-                                    tray.layoutManager?.findViewByPosition(selectedBrowserTabIndex)
-                                        ?.requestFocus()
-                                    tray.layoutManager?.findViewByPosition(selectedBrowserTabIndex)
-                                        ?.sendAccessibilityEvent(
-                                            AccessibilityEvent.TYPE_VIEW_FOCUSED
-                                        )
-                                }
+        view.tabsTray.apply {
+            layoutManager = LinearLayoutManager(container.context).apply {
+                reverseLayout = true
+                stackFromEnd = true
+            }
+            adapter = tabsAdapter
+
+            tabsTouchHelper = TabsTouchHelper(tabsAdapter)
+            tabsTouchHelper.attachToRecyclerView(this)
+
+            tabsAdapter.tabTrayInteractor = interactor
+            tabsAdapter.onTabsUpdated = {
+                if (hasAccessibilityEnabled) {
+                    tabsAdapter.notifyDataSetChanged()
+                }
+                if (!hasLoaded) {
+                    hasLoaded = true
+                    scrollToTab(view.context.components.core.store.state.selectedTabId)
+                    if (view.context.settings().accessibilityServicesEnabled) {
+                        lifecycleScope.launch {
+                            delay(SELECTION_DELAY.toLong())
+                            lifecycleScope.launch(Main) {
+                                layoutManager?.findViewByPosition(selectedBrowserTabIndex)
+                                    ?.requestFocus()
+                                layoutManager?.findViewByPosition(selectedBrowserTabIndex)
+                                    ?.sendAccessibilityEvent(
+                                        AccessibilityEvent.TYPE_VIEW_FOCUSED
+                                    )
                             }
                         }
                     }
@@ -152,7 +166,7 @@ class TabTrayView(
                     is TabTrayItemMenu.Item.ShareAllTabs -> interactor.onShareTabsClicked(
                         isPrivateModeSelected
                     )
-                    is TabTrayItemMenu.Item.SaveToCollection -> interactor.onSaveToCollectionClicked()
+                    is TabTrayItemMenu.Item.SaveToCollection -> interactor.onEnterMultiselect()
                     is TabTrayItemMenu.Item.CloseAllTabs -> interactor.onCloseAllTabsClicked(
                         isPrivateModeSelected
                     )
@@ -173,6 +187,10 @@ class TabTrayView(
                 }
         }
 
+        adjustNewTabButtonsForNormalMode()
+    }
+
+    private fun adjustNewTabButtonsForNormalMode() {
         view.tab_tray_new_tab.apply {
             isVisible = hasAccessibilityEnabled
             setOnClickListener {
@@ -208,7 +226,7 @@ class TabTrayView(
         toggleFabText(isPrivateModeSelected)
         filterTabs.invoke(isPrivateModeSelected)
 
-        updateState(view.context.components.core.store.state)
+        updateUINormalMode(view.context.components.core.store.state)
         scrollToTab(view.context.components.core.store.state.selectedTabId)
 
         if (isPrivateModeSelected) {
@@ -224,32 +242,168 @@ class TabTrayView(
     override fun onTabUnselected(tab: TabLayout.Tab?) { /*noop*/
     }
 
-    fun updateState(state: BrowserState) {
-        view.let {
-            val hasNoTabs = if (isPrivateModeSelected) {
-                state.privateTabs.isEmpty()
-            } else {
-                state.normalTabs.isEmpty()
-            }
+    var mode: TabTrayDialogFragmentState.Mode = TabTrayDialogFragmentState.Mode.Normal
+        private set
 
-            view.tab_tray_empty_view.isVisible = hasNoTabs
-            if (hasNoTabs) {
-                view.tab_tray_empty_view.text = if (isPrivateModeSelected) {
-                    view.context.getString(R.string.no_private_tabs_description)
-                } else {
-                    view.context?.getString(R.string.no_open_tabs_description)
+    fun updateState(state: TabTrayDialogFragmentState) {
+        val oldMode = mode
+
+        if (oldMode::class != state.mode::class && view.context.settings().accessibilityServicesEnabled) {
+            view.announceForAccessibility(
+                if (state.mode == TabTrayDialogFragmentState.Mode.Normal) view.context.getString(
+                    R.string.tab_tray_exit_multiselect_content_description
+                ) else view.context.getString(R.string.tab_tray_enter_multiselect_content_description)
+            )
+        }
+
+        mode = state.mode
+        when (state.mode) {
+            TabTrayDialogFragmentState.Mode.Normal -> {
+                view.tabsTray.apply {
+                    tabsTouchHelper.attachToRecyclerView(this)
+                }
+
+                toggleUIMultiselect(multiselect = false)
+
+                updateUINormalMode(state.browserState)
+            }
+            is TabTrayDialogFragmentState.Mode.MultiSelect -> {
+                // Disable swipe to delete while in multiselect
+                tabsTouchHelper.attachToRecyclerView(null)
+
+                toggleUIMultiselect(multiselect = true)
+
+                fabView.new_tab_button.isVisible = false
+                view.tab_tray_new_tab.isVisible = false
+                view.collect_multi_select.isVisible = state.mode.selectedItems.size > 0
+
+                view.multiselect_title.text = view.context.getString(
+                    R.string.tab_tray_multi_select_title,
+                    state.mode.selectedItems.size
+                )
+                view.collect_multi_select.setOnClickListener {
+                    interactor.onSaveToCollectionClicked(state.mode.selectedItems)
+                }
+                view.exit_multi_select.setOnClickListener {
+                    interactor.onBackPressed()
                 }
             }
+        }
 
-            view.tabsTray.asView().visibility = if (hasNoTabs) {
-                View.INVISIBLE
-            } else {
-                View.VISIBLE
+        if (oldMode.selectedItems != state.mode.selectedItems) {
+            val unselectedItems = oldMode.selectedItems - state.mode.selectedItems
+
+            state.mode.selectedItems.union(unselectedItems).forEach { item ->
+                if (view.context.settings().accessibilityServicesEnabled) {
+                    view.announceForAccessibility(
+                        if (unselectedItems.contains(item)) view.context.getString(
+                            R.string.tab_tray_item_unselected_multiselect_content_description,
+                            item.title
+                        ) else view.context.getString(
+                            R.string.tab_tray_item_selected_multiselect_content_description,
+                            item.title
+                        )
+                    )
+                }
+                updateTabsForSelectionChanged(item.id)
             }
-            view.tab_tray_overflow.isVisible = !hasNoTabs
+        }
+    }
 
-            counter_text.text = "${state.normalTabs.size}"
-            updateTabCounterContentDescription(state.normalTabs.size)
+    private fun ConstraintLayout.setChildWPercent(percentage: Float, @IdRes childId: Int) {
+        this.findViewById<View>(childId)?.let {
+            val constraintSet = ConstraintSet()
+            constraintSet.clone(this)
+            constraintSet.constrainPercentWidth(it.id, percentage)
+            constraintSet.applyTo(this)
+            it.requestLayout()
+        }
+    }
+
+    private fun updateUINormalMode(browserState: BrowserState) {
+        val hasNoTabs = if (isPrivateModeSelected) {
+            browserState.privateTabs.isEmpty()
+        } else {
+            browserState.normalTabs.isEmpty()
+        }
+
+        view.tab_tray_empty_view.isVisible = hasNoTabs
+        if (hasNoTabs) {
+            view.tab_tray_empty_view.text = if (isPrivateModeSelected) {
+                view.context.getString(R.string.no_private_tabs_description)
+            } else {
+                view.context?.getString(R.string.no_open_tabs_description)
+            }
+        }
+
+        view.tabsTray.visibility = if (hasNoTabs) {
+            View.INVISIBLE
+        } else {
+            View.VISIBLE
+        }
+        view.tab_tray_overflow.isVisible = !hasNoTabs
+
+        counter_text.text = "${browserState.normalTabs.size}"
+        updateTabCounterContentDescription(browserState.normalTabs.size)
+
+        adjustNewTabButtonsForNormalMode()
+    }
+
+    private fun toggleUIMultiselect(multiselect: Boolean) {
+        view.multiselect_title.isVisible = multiselect
+        view.collect_multi_select.isVisible = multiselect
+        view.exit_multi_select.isVisible = multiselect
+
+        view.topBar.setBackgroundColor(
+            ContextCompat.getColor(
+                view.context,
+                if (multiselect) R.color.accent_normal_theme else R.color.foundation_normal_theme
+            )
+        )
+
+        val displayMetrics = view.context.resources.displayMetrics
+
+        view.handle.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+            height =
+                if (multiselect) MULTISELECT_HANDLE_HEIGHT.dpToPx(displayMetrics) else NORMAL_HANDLE_HEIGHT.dpToPx(
+                    displayMetrics
+                )
+            topMargin = if (multiselect) 0.dpToPx(displayMetrics) else NORMAL_TOP_MARGIN.dpToPx(
+                displayMetrics
+            )
+        }
+
+        view.tab_wrapper.setChildWPercent(
+            if (multiselect) 1F else NORMAL_HANDLE_PERCENT_WIDTH,
+            view.handle.id
+        )
+
+        view.handle.setBackgroundColor(
+            ContextCompat.getColor(
+                view.context,
+                if (multiselect) R.color.accent_normal_theme else R.color.secondary_text_normal_theme
+            )
+        )
+
+        view.tab_layout.isVisible = !multiselect
+        view.tab_tray_empty_view.isVisible = !multiselect
+        view.tab_tray_overflow.isVisible = !multiselect
+        view.tab_layout.isVisible = !multiselect
+    }
+
+    private fun updateTabsForSelectionChanged(itemId: String) {
+        view.tabsTray.apply {
+            val tabs = if (isPrivateModeSelected) {
+                view.context.components.core.store.state.privateTabs
+            } else {
+                view.context.components.core.store.state.normalTabs
+            }
+
+            val selectedBrowserTabIndex = tabs.indexOfFirst { it.id == itemId }
+
+            this.adapter?.notifyItemChanged(
+                selectedBrowserTabIndex, true
+            )
         }
     }
 
@@ -287,8 +441,12 @@ class TabTrayView(
         }
     }
 
+    fun onBackPressed(): Boolean {
+        return interactor.onBackPressed()
+    }
+
     fun scrollToTab(sessionId: String?) {
-        (view.tabsTray as? BrowserTabsTray)?.also { tray ->
+        view.tabsTray.apply {
             val tabs = if (isPrivateModeSelected) {
                 view.context.components.core.store.state.privateTabs
             } else {
@@ -298,7 +456,7 @@ class TabTrayView(
             val selectedBrowserTabIndex = tabs
                 .indexOfFirst { it.id == sessionId }
 
-            tray.layoutManager?.scrollToPosition(selectedBrowserTabIndex)
+            layoutManager?.scrollToPosition(selectedBrowserTabIndex)
         }
     }
 
@@ -308,6 +466,10 @@ class TabTrayView(
         private const val EXPAND_AT_SIZE = 3
         private const val SLIDE_OFFSET = 0
         private const val SELECTION_DELAY = 500
+        private const val MULTISELECT_HANDLE_HEIGHT = 11
+        private const val NORMAL_HANDLE_HEIGHT = 3
+        private const val NORMAL_TOP_MARGIN = 8
+        private const val NORMAL_HANDLE_PERCENT_WIDTH = 0.1F
     }
 }
 

app/src/main/java/org/mozilla/fenix/tabtray/TabTrayViewHolder.kt

@@ -10,10 +10,13 @@ import android.widget.ImageButton
 import android.widget.ImageView
 import android.widget.TextView
 import androidx.annotation.VisibleForTesting
+import androidx.appcompat.content.res.AppCompatResources
 import androidx.appcompat.widget.AppCompatImageButton
 import androidx.core.content.ContextCompat
 import mozilla.components.browser.state.state.MediaState
+import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.browser.tabstray.TabViewHolder
+import mozilla.components.browser.tabstray.TabsTrayStyling
 import mozilla.components.browser.tabstray.thumbnail.TabThumbnailView
 import mozilla.components.browser.toolbar.MAX_URI_LENGTH
 import mozilla.components.concept.tabstray.Tab
@@ -26,12 +29,14 @@ import mozilla.components.support.images.loader.ImageLoader
 import mozilla.components.support.ktx.kotlin.tryGetHostFromUrl
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
+import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getMediaStateForSession
 import org.mozilla.fenix.ext.increaseTapArea
 import org.mozilla.fenix.ext.removeAndDisable
 import org.mozilla.fenix.ext.removeTouchDelegate
 import org.mozilla.fenix.ext.showAndEnable
-import org.mozilla.fenix.ext.toTab
+import org.mozilla.fenix.utils.Do
 import kotlin.math.max
 
 /**
@@ -40,8 +45,10 @@ import kotlin.math.max
 class TabTrayViewHolder(
     itemView: View,
     private val imageLoader: ImageLoader,
-    val getSelectedTabId: () -> String? = { itemView.context.components.core.store.state.selectedTabId }
+    private val store: BrowserStore = itemView.context.components.core.store,
+    private val metrics: MetricController = itemView.context.components.analytics.metrics
 ) : TabViewHolder(itemView) {
+
     private val titleView: TextView = itemView.findViewById(R.id.mozac_browser_tabstray_title)
     private val closeView: AppCompatImageButton =
         itemView.findViewById(R.id.mozac_browser_tabstray_close)
@@ -57,10 +64,12 @@ class TabTrayViewHolder(
     /**
      * Displays the data of the given session and notifies the given observable about events.
      */
-    override fun bind(tab: Tab, isSelected: Boolean, observable: Observable<TabsTray.Observer>) {
-        // This is a hack to workaround a bug in a-c.
-        // https://github.com/mozilla-mobile/android-components/issues/7186
-        val isSelected2 = tab.id == getSelectedTabId()
+    override fun bind(
+        tab: Tab,
+        isSelected: Boolean,
+        styling: TabsTrayStyling,
+        observable: Observable<TabsTray.Observer>
+    ) {
         this.tab = tab
 
         // Basic text
@@ -69,7 +78,7 @@ class TabTrayViewHolder(
         updateCloseButtonDescription(tab.title)
 
         // Drawables and theme
-        updateBackgroundColor(isSelected2)
+        updateBackgroundColor(isSelected)
 
         if (tab.thumbnail != null) {
             thumbnailView.setImageBitmap(tab.thumbnail)
@@ -79,16 +88,15 @@ class TabTrayViewHolder(
 
         // Media state
         playPauseButtonView.increaseTapArea(PLAY_PAUSE_BUTTON_EXTRA_DPS)
-        val session = itemView.context?.components?.core?.sessionManager?.findSessionById(tab.id)
         with(playPauseButtonView) {
             invalidate()
-            when (session?.toTab(itemView.context)?.mediaState) {
+            Do exhaustive when (store.state.getMediaStateForSession(tab.id)) {
                 MediaState.State.PAUSED -> {
                     showAndEnable()
                     contentDescription =
                         context.getString(R.string.mozac_feature_media_notification_action_play)
                     setImageDrawable(
-                        androidx.appcompat.content.res.AppCompatResources.getDrawable(
+                        AppCompatResources.getDrawable(
                             context,
                             R.drawable.tab_tray_play_with_background
                         )
@@ -100,7 +108,7 @@ class TabTrayViewHolder(
                     contentDescription =
                         context.getString(R.string.mozac_feature_media_notification_action_pause)
                     setImageDrawable(
-                        androidx.appcompat.content.res.AppCompatResources.getDrawable(
+                        AppCompatResources.getDrawable(
                             context,
                             R.drawable.tab_tray_pause_with_background
                         )
@@ -115,16 +123,15 @@ class TabTrayViewHolder(
         }
 
         playPauseButtonView.setOnClickListener {
-            val mState = session?.toTab(itemView.context)?.mediaState
-            when (mState) {
+            Do exhaustive when (store.state.getMediaStateForSession(tab.id)) {
                 MediaState.State.PLAYING -> {
-                    itemView.context.components.analytics.metrics.track(Event.TabMediaPause)
-                    itemView.context.components.core.store.state.media.pauseIfPlaying()
+                    metrics.track(Event.TabMediaPause)
+                    store.state.media.pauseIfPlaying()
                 }
 
                 MediaState.State.PAUSED -> {
-                    itemView.context.components.analytics.metrics.track(Event.TabMediaPlay)
-                    itemView.context.components.core.store.state.media.playIfPaused()
+                    metrics.track(Event.TabMediaPlay)
+                    store.state.media.playIfPaused()
                 }
 
                 MediaState.State.NONE -> throw AssertionError(
@@ -133,10 +140,6 @@ class TabTrayViewHolder(
             }
         }
 
-        itemView.setOnClickListener {
-            observable.notifyObservers { onTabSelected(tab) }
-        }
-
         closeView.setOnClickListener {
             observable.notifyObservers { onTabClosed(tab) }
         }
@@ -189,7 +192,7 @@ class TabTrayViewHolder(
     }
 
     internal fun updateAccessibilityRowIndex(item: View, newIndex: Int) {
-        item.setAccessibilityDelegate(object : View.AccessibilityDelegate() {
+        item.accessibilityDelegate = object : View.AccessibilityDelegate() {
             override fun onInitializeAccessibilityNodeInfo(
                 host: View?,
                 info: AccessibilityNodeInfo?
@@ -208,7 +211,7 @@ class TabTrayViewHolder(
                     }
                 }
             }
-        })
+        }
     }
 
     companion object {

app/src/main/java/org/mozilla/fenix/trackingprotection/TrackingProtectionOverlay.kt

@@ -13,7 +13,6 @@ import android.view.LayoutInflater
 import android.view.MotionEvent
 import android.view.View
 import android.widget.ImageView
-import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.core.view.marginTop
 import kotlinx.android.synthetic.main.tracking_protection_onboarding_popup.*
@@ -22,6 +21,7 @@ import mozilla.components.browser.session.Session
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.increaseTapArea
 import org.mozilla.fenix.utils.Settings
 
@@ -63,10 +63,10 @@ class TrackingProtectionOverlay(
 
         val layout = LayoutInflater.from(context)
             .inflate(R.layout.tracking_protection_onboarding_popup, null)
-        val isBottomToolbar = settings.shouldUseBottomToolbar
+        val toolbarPosition = settings.toolbarPosition
 
-        layout.drop_down_triangle.isGone = isBottomToolbar
-        layout.pop_up_triangle.isVisible = isBottomToolbar
+        layout.drop_down_triangle.isVisible = toolbarPosition == ToolbarPosition.TOP
+        layout.pop_up_triangle.isVisible = toolbarPosition == ToolbarPosition.BOTTOM
 
         layout.onboarding_message.text =
             context.getString(
@@ -91,11 +91,7 @@ class TrackingProtectionOverlay(
 
         val xOffset = triangleMarginStartPx + triangleWidthPx / 2
 
-        val gravity = if (isBottomToolbar) {
-            Gravity.START or Gravity.BOTTOM
-        } else {
-            Gravity.START or Gravity.TOP
-        }
+        val gravity = Gravity.START or toolbarPosition.androidGravity
 
         trackingOnboardingDialog.apply {
             setContentView(layout)

app/src/main/java/org/mozilla/fenix/trackingprotection/TrackingProtectionStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.trackingprotection
 

app/src/main/java/org/mozilla/fenix/trackingprotectionexceptions/ExceptionsFragmentStore.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.trackingprotectionexceptions
 

app/src/main/java/org/mozilla/fenix/trackingprotectionexceptions/ExceptionsInteractor.kt

@@ -1,6 +1,6 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 package org.mozilla.fenix.trackingprotectionexceptions
 

app/src/main/java/org/mozilla/fenix/utils/Settings.kt

@@ -29,6 +29,7 @@ import org.mozilla.fenix.Config
 import org.mozilla.fenix.R
 import org.mozilla.fenix.browser.browsingmode.BrowsingMode
 import org.mozilla.fenix.components.metrics.MozillaProductDetector
+import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.settings.PhoneFeature
@@ -463,6 +464,9 @@ class Settings(private val appContext: Context) : PreferencesHolder {
         default = !touchExplorationIsEnabled && !switchServiceIsEnabled
     )
 
+    val toolbarPosition: ToolbarPosition
+        get() = if (shouldUseBottomToolbar) ToolbarPosition.BOTTOM else ToolbarPosition.TOP
+
     /**
      * Check each active accessibility service to see if it can perform gestures, if any can,
      * then it is *likely* a switch service is enabled. We are assuming this to be the case based on #7486
@@ -827,12 +831,10 @@ class Settings(private val appContext: Context) : PreferencesHolder {
         get() {
             return when (savedLoginsSortingStrategyString) {
                 SavedLoginsFragment.SORTING_STRATEGY_ALPHABETICALLY -> SortingStrategy.Alphabetically(
-                    appContext
+                    appContext.components.publicSuffixList
                 )
-                SavedLoginsFragment.SORTING_STRATEGY_LAST_USED -> SortingStrategy.LastUsed(
-                    appContext
-                )
-                else -> SortingStrategy.Alphabetically(appContext)
+                SavedLoginsFragment.SORTING_STRATEGY_LAST_USED -> SortingStrategy.LastUsed
+                else -> SortingStrategy.Alphabetically(appContext.components.publicSuffixList)
             }
         }
         set(value) {