diff --git a/app/src/androidTest/java/org/mozilla/fenix/ui/DeepLinkTest.kt b/app/src/androidTest/java/org/mozilla/fenix/ui/DeepLinkTest.kt
index 21d6fdb6a..4f9a0885e 100644
--- a/app/src/androidTest/java/org/mozilla/fenix/ui/DeepLinkTest.kt
+++ b/app/src/androidTest/java/org/mozilla/fenix/ui/DeepLinkTest.kt
@@ -29,6 +29,8 @@ import org.mozilla.fenix.ui.robots.DeepLinkRobot
  *  - fenix://urls_bookmarks — take the user to the bookmarks list
  *  - fenix://settings_logins — take the user to the settings page to do with logins (not the saved logins).
  **/
+
+@Ignore("All tests perma-failing, see: https://github.com/mozilla-mobile/fenix/issues/13491")
 class DeepLinkTest {
     private val mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
     private lateinit var mockWebServer: MockWebServer
diff --git a/app/src/geckoRelease/java/org/mozilla/fenix/engine/GeckoProvider.kt b/app/src/geckoRelease/java/org/mozilla/fenix/engine/GeckoProvider.kt
index f2f715078..ef75ce688 100644
--- a/app/src/geckoRelease/java/org/mozilla/fenix/engine/GeckoProvider.kt
+++ b/app/src/geckoRelease/java/org/mozilla/fenix/engine/GeckoProvider.kt
@@ -5,6 +5,7 @@
 import android.content.Context
 import android.os.Bundle
 import mozilla.components.browser.engine.gecko.autofill.GeckoLoginDelegateWrapper
+import mozilla.components.browser.engine.gecko.ext.toContentBlockingSetting
 import mozilla.components.browser.engine.gecko.glean.GeckoAdapter
 import mozilla.components.concept.engine.EngineSession.TrackingProtectionPolicy
 import mozilla.components.concept.storage.LoginsStorage
@@ -50,8 +51,7 @@ object GeckoProvider {
         val runtimeSettings = builder
             .crashHandler(CrashHandlerService::class.java)
             .telemetryDelegate(GeckoAdapter())
-            // TODO: Fix me!
-            // .contentBlocking(policy.toContentBlockingSetting())
+            .contentBlocking(policy.toContentBlockingSetting())
             .aboutConfigEnabled(Config.channel.isBeta)
             .debugLogging(Config.channel.isDebug)
             .build()
diff --git a/app/src/main/java/org/mozilla/fenix/AppRequestInterceptor.kt b/app/src/main/java/org/mozilla/fenix/AppRequestInterceptor.kt
index 312460f1d..915320890 100644
--- a/app/src/main/java/org/mozilla/fenix/AppRequestInterceptor.kt
+++ b/app/src/main/java/org/mozilla/fenix/AppRequestInterceptor.kt
@@ -28,7 +28,14 @@ class AppRequestInterceptor(private val context: Context) : RequestInterceptor {
     ): RequestInterceptor.InterceptionResponse? {
         return context.components.services.appLinksInterceptor
             .onLoadRequest(
-                engineSession, uri, lastUri, hasUserGesture, isSameDomain, isRedirect, isDirectNavigation, isSubframeRequest
+                engineSession,
+                uri,
+                lastUri,
+                hasUserGesture,
+                isSameDomain,
+                isRedirect,
+                isDirectNavigation,
+                isSubframeRequest
             )
     }
 
diff --git a/app/src/main/java/org/mozilla/fenix/FeatureFlags.kt b/app/src/main/java/org/mozilla/fenix/FeatureFlags.kt
index c98f1b555..da2c235cf 100644
--- a/app/src/main/java/org/mozilla/fenix/FeatureFlags.kt
+++ b/app/src/main/java/org/mozilla/fenix/FeatureFlags.kt
@@ -48,4 +48,9 @@ object FeatureFlags {
      * Enables wait til first contentful paint
      */
     val waitUntilPaintToDraw = Config.channel.isNightlyOrDebug
+
+    /**
+     * Enables downloads with external download managers.
+     */
+    val externalDownloadManager = Config.channel.isNightlyOrDebug
 }
diff --git a/app/src/main/java/org/mozilla/fenix/HomeActivity.kt b/app/src/main/java/org/mozilla/fenix/HomeActivity.kt
index 479e168c9..f30d021a6 100644
--- a/app/src/main/java/org/mozilla/fenix/HomeActivity.kt
+++ b/app/src/main/java/org/mozilla/fenix/HomeActivity.kt
@@ -252,10 +252,12 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
         lifecycleScope.launch(IO) {
             if (
                 settings().isDefaultBrowser() &&
-                settings().wasDefaultBrowserOnLastPause != settings().isDefaultBrowser()
+                settings().wasDefaultBrowserOnLastResume != settings().isDefaultBrowser()
             ) {
                 metrics.track(Event.ChangedToDefaultBrowser)
             }
+
+            settings().wasDefaultBrowserOnLastResume = settings().isDefaultBrowser()
         }
     }
 
@@ -264,11 +266,6 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
             window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
         }
 
-        if (settings().wasDefaultBrowserOnLastPause != settings().isDefaultBrowser()
-        ) {
-            settings().wasDefaultBrowserOnLastPause = settings().isDefaultBrowser()
-        }
-
         super.onPause()
 
         // Every time the application goes into the background, it is possible that the user
diff --git a/app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt b/app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt
index c7c350808..c48c7f73d 100644
--- a/app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt
@@ -21,6 +21,7 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
+import androidx.preference.PreferenceManager
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.fragment_browser.*
 import kotlinx.android.synthetic.main.fragment_browser.view.*
@@ -41,7 +42,6 @@ import mozilla.components.browser.state.selector.findTabOrCustomTabOrSelectedTab
 import mozilla.components.browser.state.state.SessionState
 import mozilla.components.browser.state.state.content.DownloadState
 import mozilla.components.browser.state.store.BrowserStore
-import mozilla.components.browser.thumbnails.BrowserThumbnails
 import mozilla.components.concept.engine.prompt.ShareData
 import mozilla.components.feature.accounts.FxaCapability
 import mozilla.components.feature.accounts.FxaWebChannelFeature
@@ -99,6 +99,7 @@ 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.getPreferenceKey
 import org.mozilla.fenix.ext.hideToolbar
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.nav
@@ -138,7 +139,6 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
     private val appLinksFeature = ViewBoundFeatureWrapper<AppLinksFeature>()
     private val promptsFeature = ViewBoundFeatureWrapper<PromptFeature>()
     private val findInPageIntegration = ViewBoundFeatureWrapper<FindInPageIntegration>()
-    private val thumbnailsFeature = ViewBoundFeatureWrapper<BrowserThumbnails>()
     private val toolbarIntegration = ViewBoundFeatureWrapper<ToolbarIntegration>()
     private val sitePermissionsFeature = ViewBoundFeatureWrapper<SitePermissionsFeature>()
     private val fullScreenFeature = ViewBoundFeatureWrapper<FullScreenFeature>()
@@ -279,12 +279,6 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                 lifecycleOwner = viewLifecycleOwner
             )
 
-            thumbnailsFeature.set(
-                feature = BrowserThumbnails(context, view.engineView, store),
-                owner = this,
-                view = view
-            )
-
             toolbarIntegration.set(
                 feature = browserToolbarView.toolbarIntegration,
                 owner = this,
@@ -346,6 +340,11 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                 view = view
             )
 
+            val shouldForwardToThirdParties =
+                PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+                    context.getPreferenceKey(R.string.pref_key_external_download_manager), false
+                )
+
             val downloadFeature = DownloadsFeature(
                 context.applicationContext,
                 store = store,
@@ -357,6 +356,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                     store,
                     DownloadService::class
                 ),
+                shouldForwardToThirdParties = { shouldForwardToThirdParties },
                 promptsStyling = DownloadsFeature.PromptsStyling(
                     gravity = Gravity.BOTTOM,
                     shouldWidthMatchParent = true,
@@ -586,7 +586,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                         .ifChanged { it.content.firstContentfulPaint }
                         .collect {
                             val showEngineView =
-                                it.content.firstContentfulPaint || it.content.progress == 100
+                                it.content.firstContentfulPaint || it.content.progress == LOADING_PROGRESS_COMPLETE
 
                             if (showEngineView) {
                                 engineView?.asView()?.isVisible = true
@@ -804,11 +804,8 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
     }
 
     override fun onBackLongPressed(): Boolean {
-        if (FeatureFlags.tabHistory) {
-            findNavController().navigate(R.id.action_global_tabHistoryDialogFragment)
-            return true
-        }
-        return false
+        findNavController().navigate(R.id.action_global_tabHistoryDialogFragment)
+        return true
     }
 
     /**
@@ -1074,6 +1071,8 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         private const val REQUEST_CODE_DOWNLOAD_PERMISSIONS = 1
         private const val REQUEST_CODE_PROMPT_PERMISSIONS = 2
         private const val REQUEST_CODE_APP_PERMISSIONS = 3
+
+        private const val LOADING_PROGRESS_COMPLETE = 100
     }
 
     override fun onAccessibilityStateChanged(enabled: Boolean) {
diff --git a/app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt b/app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt
index 9a32bf1b6..559e594cf 100644
--- a/app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt
+++ b/app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt
@@ -42,7 +42,7 @@ class BrowserAnimator(
         if (unwrappedSwipeRefresh?.context?.settings()?.waitToShowPageUntilFirstPaint == true) {
             if (firstContentfulHappened()) {
                 viewLifecycleScope.get()?.launch {
-                    delay(100)
+                    delay(ANIMATION_DELAY)
                     unwrappedEngineView?.asView()?.visibility = View.VISIBLE
                     unwrappedSwipeRefresh?.background = null
                     unwrappedSwipeRefresh?.alpha = 1f
@@ -91,6 +91,8 @@ class BrowserAnimator(
     }
 
     companion object {
+        private const val ANIMATION_DELAY = 100L
+
         fun getToolbarNavOptions(context: Context): NavOptions {
             val navOptions = NavOptions.Builder()
 
diff --git a/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt b/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
index 1fd155f63..9163d8ab5 100644
--- a/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
@@ -21,6 +21,7 @@ import kotlinx.android.synthetic.main.fragment_browser.view.*
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import mozilla.components.browser.session.Session
 import mozilla.components.browser.state.selector.findTab
+import mozilla.components.browser.thumbnails.BrowserThumbnails
 import mozilla.components.browser.toolbar.BrowserToolbar
 import mozilla.components.feature.app.links.AppLinksUseCases
 import mozilla.components.feature.contextmenu.ContextMenuCandidate
@@ -55,6 +56,7 @@ class BrowserFragment : BaseBrowserFragment(), UserInteractionHandler {
 
     private val windowFeature = ViewBoundFeatureWrapper<WindowFeature>()
     private val searchFeature = ViewBoundFeatureWrapper<SearchFeature>()
+    private val thumbnailsFeature = ViewBoundFeatureWrapper<BrowserThumbnails>()
 
     private var readerModeAvailable = false
 
@@ -107,6 +109,12 @@ class BrowserFragment : BaseBrowserFragment(), UserInteractionHandler {
 
             browserToolbarView.view.addPageAction(readerModeAction)
 
+            thumbnailsFeature.set(
+                feature = BrowserThumbnails(context, view.engineView, components.core.store),
+                owner = this,
+                view = view
+            )
+
             readerViewFeature.set(
                 feature = StrictMode.allowThreadDiskReads().resetPoliciesAfter {
                     ReaderViewFeature(
diff --git a/app/src/main/java/org/mozilla/fenix/browser/ToolbarGestureHandler.kt b/app/src/main/java/org/mozilla/fenix/browser/ToolbarGestureHandler.kt
index 747c5cb40..ccd2b3ce4 100644
--- a/app/src/main/java/org/mozilla/fenix/browser/ToolbarGestureHandler.kt
+++ b/app/src/main/java/org/mozilla/fenix/browser/ToolbarGestureHandler.kt
@@ -35,6 +35,7 @@ import kotlin.math.min
  * Handles intercepting touch events on the toolbar for swipe gestures and executes the
  * necessary animations.
  */
+@Suppress("LargeClass", "TooManyFunctions")
 class ToolbarGestureHandler(
     private val activity: Activity,
     private val contentLayout: View,
@@ -76,6 +77,7 @@ class ToolbarGestureHandler(
             GestureDirection.LEFT_TO_RIGHT
         }
 
+        @Suppress("ComplexCondition")
         return if (
             !activity.window.decorView.isKeyboardVisible() &&
             start.isInToolbar() &&
diff --git a/app/src/main/java/org/mozilla/fenix/components/metrics/LeanplumMetricsService.kt b/app/src/main/java/org/mozilla/fenix/components/metrics/LeanplumMetricsService.kt
index 3fc636e4a..d6b4737f6 100644
--- a/app/src/main/java/org/mozilla/fenix/components/metrics/LeanplumMetricsService.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/metrics/LeanplumMetricsService.kt
@@ -95,6 +95,7 @@ class LeanplumMetricsService(
         deviceId
     }
 
+    @Suppress("ComplexMethod")
     override fun start() {
 
         if (!application.settings().isMarketingTelemetryEnabled) return
@@ -255,7 +256,7 @@ class LeanplumMetricsService(
             "jpn" // Japanese
         )
 
-        private val PREFERENCE_NAME = "LEANPLUM_PREFERENCES"
-        private val DEVICE_ID_KEY = "LP_DEVICE_ID"
+        private const val PREFERENCE_NAME = "LEANPLUM_PREFERENCES"
+        private const val DEVICE_ID_KEY = "LP_DEVICE_ID"
     }
 }
diff --git a/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt b/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
index 16b47a519..1694d89f0 100644
--- a/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
@@ -140,6 +140,7 @@ internal class ReleaseMetricController(
         MetricServiceType.Marketing -> isMarketingDataTelemetryEnabled()
     }
 
+    @Suppress("LongMethod")
     private fun Fact.toEvent(): Event? = when (Pair(component, item)) {
         Component.FEATURE_PROMPTS to LoginDialogFacts.Items.DISPLAY -> Event.LoginDialogPromptDisplayed
         Component.FEATURE_PROMPTS to LoginDialogFacts.Items.CANCEL -> Event.LoginDialogPromptCancelled
diff --git a/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarController.kt b/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarController.kt
index 953473302..5fd5b8ec6 100644
--- a/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarController.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarController.kt
@@ -23,7 +23,6 @@ import mozilla.components.concept.engine.prompt.ShareData
 import mozilla.components.feature.session.SessionFeature
 import mozilla.components.support.base.feature.ViewBoundFeatureWrapper
 import mozilla.components.support.ktx.kotlin.isUrl
-import org.mozilla.fenix.FeatureFlags
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.NavGraphDirections
 import org.mozilla.fenix.R
@@ -204,14 +203,18 @@ class DefaultBrowserToolbarController(
         trackToolbarItemInteraction(item)
 
         Do exhaustive when (item) {
-            ToolbarMenu.Item.Back -> sessionUseCases.goBack.invoke(currentSession)
-            is ToolbarMenu.Item.Forward -> {
-                if (FeatureFlags.tabHistory && item.viewHistory) {
+            is ToolbarMenu.Item.Back -> {
+                if (item.viewHistory) {
                     navController.navigate(R.id.action_global_tabHistoryDialogFragment)
-                } else if (!item.viewHistory) {
-                    sessionUseCases.goForward.invoke(currentSession)
                 } else {
-                    // Do nothing if tab history feature flag is off and item.viewHistory is true
+                    sessionUseCases.goBack.invoke(currentSession)
+                }
+            }
+            is ToolbarMenu.Item.Forward -> {
+                if (item.viewHistory) {
+                    navController.navigate(R.id.action_global_tabHistoryDialogFragment)
+                } else {
+                    sessionUseCases.goForward.invoke(currentSession)
                 }
             }
             is ToolbarMenu.Item.Reload -> {
@@ -383,7 +386,7 @@ class DefaultBrowserToolbarController(
     @Suppress("ComplexMethod")
     private fun trackToolbarItemInteraction(item: ToolbarMenu.Item) {
         val eventItem = when (item) {
-            ToolbarMenu.Item.Back -> Event.BrowserMenuItemTapped.Item.BACK
+            is ToolbarMenu.Item.Back -> Event.BrowserMenuItemTapped.Item.BACK
             is ToolbarMenu.Item.Forward -> Event.BrowserMenuItemTapped.Item.FORWARD
             is ToolbarMenu.Item.Reload -> Event.BrowserMenuItemTapped.Item.RELOAD
             ToolbarMenu.Item.Stop -> Event.BrowserMenuItemTapped.Item.STOP
diff --git a/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarView.kt b/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarView.kt
index 6b1bf2316..ecaeff835 100644
--- a/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarView.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarView.kt
@@ -250,8 +250,10 @@ class BrowserToolbarView(
         private const val TOOLBAR_ELEVATION = 16
     }
 
+    @Suppress("ComplexCondition")
     private fun ToolbarMenu.Item.performHapticIfNeeded(view: View) {
         if (this is ToolbarMenu.Item.Reload && this.bypassCache ||
+            this is ToolbarMenu.Item.Back && this.viewHistory ||
             this is ToolbarMenu.Item.Forward && this.viewHistory
         ) {
             view.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS)
diff --git a/app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt b/app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt
index db8ebb164..dc98afa23 100644
--- a/app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt
@@ -74,6 +74,20 @@ class DefaultToolbarMenu(
     }
 
     override val menuToolbar by lazy {
+        val back = BrowserMenuItemToolbar.TwoStateButton(
+            primaryImageResource = mozilla.components.ui.icons.R.drawable.mozac_ic_back,
+            primaryContentDescription = context.getString(R.string.browser_menu_back),
+            primaryImageTintResource = primaryTextColor(),
+            isInPrimaryState = {
+                session?.canGoBack ?: true
+            },
+            secondaryImageTintResource = ThemeManager.resolveAttribute(R.attr.disabled, context),
+            disableInSecondaryState = true,
+            longClickListener = { onItemTapped.invoke(ToolbarMenu.Item.Back(viewHistory = true)) }
+        ) {
+            onItemTapped.invoke(ToolbarMenu.Item.Back(viewHistory = false))
+        }
+
         val forward = BrowserMenuItemToolbar.TwoStateButton(
             primaryImageResource = mozilla.components.ui.icons.R.drawable.mozac_ic_forward,
             primaryContentDescription = context.getString(R.string.browser_menu_forward),
@@ -135,7 +149,7 @@ class DefaultToolbarMenu(
             onItemTapped.invoke(ToolbarMenu.Item.Bookmark)
         }
 
-        BrowserMenuItemToolbar(listOf(bookmark, share, forward, refresh))
+        BrowserMenuItemToolbar(listOf(back, forward, bookmark, share, refresh))
     }
 
     // Predicates that need to be repeatedly called as the session changes
diff --git a/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarMenu.kt b/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarMenu.kt
index 46c422bb9..5a8d88b13 100644
--- a/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarMenu.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarMenu.kt
@@ -13,7 +13,7 @@ interface ToolbarMenu {
         data class RequestDesktop(val isChecked: Boolean) : Item()
         object FindInPage : Item()
         object Share : Item()
-        object Back : Item()
+        data class Back(val viewHistory: Boolean) : Item()
         data class Forward(val viewHistory: Boolean) : Item()
         data class Reload(val bypassCache: Boolean) : Item()
         object Stop : Item()
diff --git a/app/src/main/java/org/mozilla/fenix/customtabs/CustomTabToolbarMenu.kt b/app/src/main/java/org/mozilla/fenix/customtabs/CustomTabToolbarMenu.kt
index 4c69f7877..fa3e8a94e 100644
--- a/app/src/main/java/org/mozilla/fenix/customtabs/CustomTabToolbarMenu.kt
+++ b/app/src/main/java/org/mozilla/fenix/customtabs/CustomTabToolbarMenu.kt
@@ -59,9 +59,10 @@ class CustomTabToolbarMenu(
                 R.attr.disabled,
                 context
             ),
-            disableInSecondaryState = true
+            disableInSecondaryState = true,
+            longClickListener = { onItemTapped.invoke(ToolbarMenu.Item.Back(viewHistory = true)) }
         ) {
-            onItemTapped.invoke(ToolbarMenu.Item.Back)
+            onItemTapped.invoke(ToolbarMenu.Item.Back(viewHistory = false))
         }
 
         val forward = BrowserMenuItemToolbar.TwoStateButton(
diff --git a/app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt b/app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt
index c9df30ee2..a5b4b7de7 100644
--- a/app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt
+++ b/app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt
@@ -232,7 +232,10 @@ class DefaultSessionControlController(
     }
 
     override fun handleCollectionShareTabsClicked(collection: TabCollection) {
-        showShareFragment(collection.tabs.map { ShareData(url = it.url, title = it.title) })
+        showShareFragment(
+            collection.title,
+            collection.tabs.map { ShareData(url = it.url, title = it.title) }
+        )
         metrics.track(Event.CollectionShared)
     }
 
@@ -366,8 +369,9 @@ class DefaultSessionControlController(
         showTabTrayCollectionCreation()
     }
 
-    private fun showShareFragment(data: List<ShareData>) {
+    private fun showShareFragment(shareSubject: String, data: List<ShareData>) {
         val directions = HomeFragmentDirections.actionGlobalShareFragment(
+            shareSubject = shareSubject,
             data = data.toTypedArray()
         )
         navController.nav(R.id.homeFragment, directions)
diff --git a/app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt b/app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt
index 469c5397d..ee9bc6fb6 100644
--- a/app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt
@@ -29,6 +29,7 @@ import mozilla.components.support.ktx.android.content.hasCamera
 import org.mozilla.fenix.BrowserDirection
 import org.mozilla.fenix.Config
 import org.mozilla.fenix.HomeActivity
+import org.mozilla.fenix.FeatureFlags
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.application
@@ -301,7 +302,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
     private fun setupPreferences() {
         val leakKey = getPreferenceKey(R.string.pref_key_leakcanary)
         val debuggingKey = getPreferenceKey(R.string.pref_key_remote_debugging)
-
+        val preferenceExternalDownloadManager = requirePreference<Preference>(R.string.pref_key_make_default_browser)
         val preferenceLeakCanary = findPreference<Preference>(leakKey)
         val preferenceRemoteDebugging = findPreference<Preference>(debuggingKey)
         val preferenceMakeDefaultBrowser = requirePreference<Preference>(R.string.pref_key_make_default_browser)
@@ -314,6 +315,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
             }
         }
 
+        preferenceExternalDownloadManager.isVisible = FeatureFlags.externalDownloadManager
         preferenceRemoteDebugging?.setOnPreferenceChangeListener<Boolean> { preference, newValue ->
             preference.context.settings().preferences.edit()
                 .putBoolean(preference.key, newValue).apply()
diff --git a/app/src/main/java/org/mozilla/fenix/share/ShareController.kt b/app/src/main/java/org/mozilla/fenix/share/ShareController.kt
index 0f768cd9e..2c1f44888 100644
--- a/app/src/main/java/org/mozilla/fenix/share/ShareController.kt
+++ b/app/src/main/java/org/mozilla/fenix/share/ShareController.kt
@@ -55,6 +55,7 @@ interface ShareController {
  * Default behavior of [ShareController]. Other implementations are possible.
  *
  * @param context [Context] used for various Android interactions.
+ * @param shareSubject desired message subject used when sharing through 3rd party apps, like email clients.
  * @param shareData the list of [ShareData]s that can be shared.
  * @param sendTabUseCases instance of [SendTabUseCases] which allows sending tabs to account devices.
  * @param snackbar - instance of [FenixSnackbar] for displaying styled snackbars
@@ -64,6 +65,7 @@ interface ShareController {
 @Suppress("TooManyFunctions")
 class DefaultShareController(
     private val context: Context,
+    private val shareSubject: String?,
     private val shareData: List<ShareData>,
     private val sendTabUseCases: SendTabUseCases,
     private val snackbar: FenixSnackbar,
@@ -90,7 +92,7 @@ class DefaultShareController(
 
         val intent = Intent(ACTION_SEND).apply {
             putExtra(EXTRA_TEXT, getShareText())
-            putExtra(EXTRA_SUBJECT, shareData.map { it.title }.joinToString(", "))
+            putExtra(EXTRA_SUBJECT, getShareSubject())
             type = "text/plain"
             flags = FLAG_ACTIVITY_NEW_TASK
             setClassName(app.packageName, app.activityName)
@@ -189,6 +191,9 @@ class DefaultShareController(
         }
     }
 
+    @VisibleForTesting
+    internal fun getShareSubject() = shareSubject ?: shareData.map { it.title }.joinToString(", ")
+
     // Navigation between app fragments uses ShareTab as arguments. SendTabUseCases uses TabData.
     @VisibleForTesting
     internal fun List<ShareData>.toTabData() = map { data ->
diff --git a/app/src/main/java/org/mozilla/fenix/share/ShareFragment.kt b/app/src/main/java/org/mozilla/fenix/share/ShareFragment.kt
index 005a8b8fe..cd190d564 100644
--- a/app/src/main/java/org/mozilla/fenix/share/ShareFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/share/ShareFragment.kt
@@ -67,6 +67,7 @@ class ShareFragment : AppCompatDialogFragment() {
         shareInteractor = ShareInteractor(
             DefaultShareController(
                 context = requireContext(),
+                shareSubject = args.shareSubject,
                 shareData = shareData,
                 snackbar = FenixSnackbar.make(
                     view = requireActivity().getRootView()!!,
diff --git a/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryView.kt b/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryView.kt
index c7e2e3004..f74da7e4d 100644
--- a/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryView.kt
+++ b/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryView.kt
@@ -34,18 +34,25 @@ class TabHistoryView(
 
     private val adapter = TabHistoryAdapter(interactor)
     private val layoutManager = object : LinearLayoutManager(containerView.context) {
+
+        private var shouldScrollToSelected = true
+
         override fun onLayoutCompleted(state: RecyclerView.State?) {
             super.onLayoutCompleted(state)
             currentIndex?.let { index ->
-                // Force expansion of the dialog, otherwise scrolling to the current history item
-                // won't work when its position is near the bottom of the recyclerview.
-                expandDialog.invoke()
-                // Also, attempt to center the current history item.
-                val itemView = tabHistoryRecyclerView.findViewHolderForLayoutPosition(
-                    findFirstCompletelyVisibleItemPosition()
-                )?.itemView
-                val offset = tabHistoryRecyclerView.height / 2 - (itemView?.height ?: 0) / 2
-                scrollToPositionWithOffset(index, offset)
+                // Attempt to center the current history item after the first layout is completed,
+                // but not after subsequent layouts
+                if (shouldScrollToSelected) {
+                    // Force expansion of the dialog, otherwise scrolling to the current history item
+                    // won't work when its position is near the bottom of the recyclerview.
+                    expandDialog.invoke()
+                    val itemView = tabHistoryRecyclerView.findViewHolderForLayoutPosition(
+                        findFirstCompletelyVisibleItemPosition()
+                    )?.itemView
+                    val offset = tabHistoryRecyclerView.height / 2 - (itemView?.height ?: 0) / 2
+                    scrollToPositionWithOffset(index, offset)
+                    shouldScrollToSelected = false
+                }
             }
         }
     }.apply {
diff --git a/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryViewHolder.kt b/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryViewHolder.kt
index 6366dca52..0f001590b 100644
--- a/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryViewHolder.kt
+++ b/app/src/main/java/org/mozilla/fenix/tabhistory/TabHistoryViewHolder.kt
@@ -33,7 +33,9 @@ class TabHistoryViewHolder(
         history_layout.loadFavicon(item.url)
 
         if (item.isSelected) {
-            history_layout.setBackgroundColor(history_layout.context.getColorFromAttr(R.attr.tabHistoryItemSelectedBackground))
+            history_layout.setBackgroundColor(
+                history_layout.context.getColorFromAttr(R.attr.tabHistoryItemSelectedBackground)
+            )
         } else {
             history_layout.background = null
         }
diff --git a/app/src/main/java/org/mozilla/fenix/utils/FeatureFlagPreference.kt b/app/src/main/java/org/mozilla/fenix/utils/FeatureFlagPreference.kt
index 51c46e657..d0830bd73 100644
--- a/app/src/main/java/org/mozilla/fenix/utils/FeatureFlagPreference.kt
+++ b/app/src/main/java/org/mozilla/fenix/utils/FeatureFlagPreference.kt
@@ -8,7 +8,11 @@ import mozilla.components.support.ktx.android.content.PreferencesHolder
 import kotlin.properties.ReadWriteProperty
 import kotlin.reflect.KProperty
 
-fun featureFlagPreference(key: String, default: Boolean, featureFlag: Boolean): ReadWriteProperty<PreferencesHolder, Boolean> =
+fun featureFlagPreference(
+    key: String,
+    default: Boolean,
+    featureFlag: Boolean
+): ReadWriteProperty<PreferencesHolder, Boolean> =
     FeatureFlagPreferencePreference(key, default, featureFlag)
 
 private class FeatureFlagPreferencePreference(
diff --git a/app/src/main/java/org/mozilla/fenix/utils/Settings.kt b/app/src/main/java/org/mozilla/fenix/utils/Settings.kt
index 8ab5be5ec..ba2390b3f 100644
--- a/app/src/main/java/org/mozilla/fenix/utils/Settings.kt
+++ b/app/src/main/java/org/mozilla/fenix/utils/Settings.kt
@@ -340,7 +340,7 @@ class Settings(private val appContext: Context) : PreferencesHolder {
      * Caches the last known "is default browser" state when the app was paused.
      * For an up to do date state use `isDefaultBrowser` instead.
      */
-    var wasDefaultBrowserOnLastPause by booleanPreference(
+    var wasDefaultBrowserOnLastResume by booleanPreference(
         appContext.getPreferenceKey(R.string.pref_key_default_browser),
         default = isDefaultBrowser()
     )
diff --git a/app/src/main/res/layout/library_site_item.xml b/app/src/main/res/layout/library_site_item.xml
index 2197e740d..4d8ea73fd 100644
--- a/app/src/main/res/layout/library_site_item.xml
+++ b/app/src/main/res/layout/library_site_item.xml
@@ -53,7 +53,8 @@
             app:layout_constraintStart_toEndOf="@id/icon"
             app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintBottom_toTopOf="@+id/url"
-            app:layout_constraintVertical_chainStyle="packed"/>
+            app:layout_constraintVertical_chainStyle="packed"
+            app:layout_goneMarginEnd="@dimen/library_item_icon_margin_horizontal" />
 
     <TextView
             android:id="@+id/url"
@@ -69,7 +70,8 @@
             app:layout_constraintEnd_toStartOf="@id/overflow_menu"
             app:layout_constraintStart_toEndOf="@id/icon"
             app:layout_constraintTop_toBottomOf="@+id/title"
-            app:layout_constraintBottom_toBottomOf="parent" />
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_goneMarginEnd="@dimen/library_item_icon_margin_horizontal" />
 
     <ImageButton
             android:id="@+id/overflow_menu"
diff --git a/app/src/main/res/navigation/nav_graph.xml b/app/src/main/res/navigation/nav_graph.xml
index c8bdb42d3..a142bf363 100644
--- a/app/src/main/res/navigation/nav_graph.xml
+++ b/app/src/main/res/navigation/nav_graph.xml
@@ -677,6 +677,11 @@
             android:defaultValue="null"
             app:argType="string"
             app:nullable="true" />
+        <argument
+            android:name="shareSubject"
+            android:defaultValue="@null"
+            app:argType="string"
+            app:nullable="true" />
     </dialog>
     <dialog
         android:id="@+id/quickSettingsSheetDialogFragment"
diff --git a/app/src/main/res/values-es-rAR/strings.xml b/app/src/main/res/values-es-rAR/strings.xml
index ab809da03..23f1445a2 100644
--- a/app/src/main/res/values-es-rAR/strings.xml
+++ b/app/src/main/res/values-es-rAR/strings.xml
@@ -2,7 +2,7 @@
 <resources>
 
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
-    <string name="app_name_private_5">Privado %s</string>
+    <string name="app_name_private_5">%s privado</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_4">%s (Privado)</string>
     <!-- Home Fragment -->
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index 929206f24..dfda518d5 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -27,6 +27,9 @@
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
     <string name="open_tab_tray_plural">%1$s pestañas abiertas. Tocar para cambiar de pestaña.</string>
 
+    <!-- Content description for checkmark while tab is selected while in multiselect mode in tab tray. The first parameter is the title of the tab selected -->
+    <string name="tab_tray_item_selected_multiselect_content_description">%1$s seleccionado</string>
+
     <!-- About content. The first parameter is the name of the application. (For example: Fenix) -->
     <string name="about_content">%1$s es producido por Mozilla.</string>
 
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index 6eb679fae..2637b586e 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -40,6 +40,8 @@
     <string name="tab_tray_collection_button_multiselect_content_description">Tallenna valitut välilehdet kokoelmaan</string>
     <!-- Content description for checkmark while tab is selected while in multiselect mode in tab tray. The first parameter is the title of the tab selected -->
     <string name="tab_tray_item_selected_multiselect_content_description">Valittu %1$s</string>
+    <!-- Content description when tab is unselected while in multiselect mode in tab tray. The first parameter is the title of the tab unselected -->
+    <string name="tab_tray_item_unselected_multiselect_content_description">Kumottu valinta %1$s</string>
     <!-- Content description announcement when exiting multiselect mode in tab tray -->
     <string name="tab_tray_exit_multiselect_content_description">Poistuttiin monivalintatilasta</string>
     <!-- Content description announcement when entering multiselect mode in tab tray -->
diff --git a/app/src/main/res/values-hi-rIN/strings.xml b/app/src/main/res/values-hi-rIN/strings.xml
index a001a6270..c5c88f206 100644
--- a/app/src/main/res/values-hi-rIN/strings.xml
+++ b/app/src/main/res/values-hi-rIN/strings.xml
@@ -37,9 +37,18 @@
     <string name="tab_tray_close_multiselect_content_description">मल्टीसेलेक्ट मोड से बाहर निकलें</string>
     <!-- Content description for save to collection button while in multiselect mode in tab tray -->
     <string name="tab_tray_collection_button_multiselect_content_description">चुने गए टैब को संग्रह में सहेजें</string>
+    <!-- Content description for checkmark while tab is selected while in multiselect mode in tab tray. The first parameter is the title of the tab selected -->
+    <string name="tab_tray_item_selected_multiselect_content_description">%1$s चयनित</string>
+    <!-- Content description when tab is unselected while in multiselect mode in tab tray. The first parameter is the title of the tab unselected -->
+    <string name="tab_tray_item_unselected_multiselect_content_description">%1$s अचयनित</string>
     <!-- Content description announcement when exiting multiselect mode in tab tray -->
     <string name="tab_tray_exit_multiselect_content_description">मल्टीसेलेक्ट मोड से बाहर निकल चुके</string>
 
+    <!-- Content description announcement when entering multiselect mode in tab tray -->
+    <string name="tab_tray_enter_multiselect_content_description">मल्टीसेलेक्ट मोड में दाखिल, संग्रह में सहेजने के लिए टैबों को चुनें</string>
+    <!-- Content description on checkmark while tab is selected in multiselect mode in tab tray -->
+    <string name="tab_tray_multiselect_selected_content_description">चयनित</string>
+
     <!-- About content. The first parameter is the name of the application. (For example: Fenix) -->
     <string name="about_content">%1$s को Mozilla द्वारा निर्मित किया गया है।</string>
 
@@ -165,8 +174,8 @@
     <!-- Search Fragment -->
     <!-- Button in the search view that lets a user search by scanning a QR code -->
     <string name="search_scan_button">स्कैन करें</string>
-    <!-- Button in the search view that lets a user search by using a shortcut -->
-    <string name="search_engines_shortcut_button">खोज इंजन</string>
+    <!-- Button in the search view that lets a user change their search engine -->
+    <string name="search_engine_button">खोज इंजन</string>
     <!-- Button in the search view when shortcuts are displayed that takes a user to the search engine settings -->
     <string name="search_shortcuts_engine_settings">खोज इंजन सेटिंग्स</string>
     <!-- Header displayed when selecting a shortcut search engine -->
@@ -597,6 +606,8 @@
     <string name="bookmark_select_folder">फ़ोल्डर चुनें</string>
     <!-- Confirmation message for a dialog confirming if the user wants to delete the selected folder -->
     <string name="bookmark_delete_folder_confirmation_dialog">क्या आप वाकई इस फ़ोल्डर को हटाना चाहते हैं?</string>
+    <!-- Confirmation message for a dialog confirming if the user wants to delete multiple items including folders. Parameter will be replaced by app name. -->
+    <string name="bookmark_delete_multiple_folders_confirmation_dialog">%s चयनित वस्तुओं को मिटा देगा।</string>
     <!-- Snackbar title shown after a folder has been deleted. This first parameter is the name of the deleted folder -->
     <string name="bookmark_delete_folder_snackbar">%1$s मिटाया गया</string>
     <!-- Screen title for adding a bookmarks folder -->
@@ -655,6 +666,8 @@
 
     <!-- Bookmark snackbar message on deleting multiple bookmarks not including folders-->
     <string name="bookmark_deletion_multiple_snackbar_message_2">बुकमार्क मिटा दिए गए</string>
+    <!-- Bookmark snackbar message on deleting multiple bookmarks including folders-->
+    <string name="bookmark_deletion_multiple_snackbar_message_3">चयनित फोल्डर मिटाए जा रहे हैं</string>
     <!-- Bookmark undo button for deletion snackbar action -->
     <string name="bookmark_undo_deletion">पूर्ववत करें</string>
 
@@ -860,6 +873,8 @@
     <string name="tab_collection_dialog_message">क्या आप वाकई %1$s को हटाना चाहते हैं?</string>
     <!-- Collection and tab deletion prompt dialog message. This will show when the last tab from a collection is deleted -->
     <string name="delete_tab_and_collection_dialog_message">इस टैब को हटाने से संपूर्ण संग्रह मिट जाएगा। आप किसी भी समय नए संग्रह बना सकते हैं।</string>
+    <!-- Collection and tab deletion prompt dialog title. Placeholder will be replaced with the collection name. This will show when the last tab from a collection is deleted -->
+    <string name="delete_tab_and_collection_dialog_title">%1$s को मिटाएं?</string>
     <!-- Tab collection deletion prompt dialog option to delete the collection -->
     <string name="tab_collection_dialog_positive">मिटाएं</string>
     <!-- Tab collection deletion prompt dialog option to cancel deleting the collection -->
@@ -1269,6 +1284,8 @@
     <string name="preferences_passwords_exceptions_description_empty">लॉगिन और पासवर्ड जो सहेजे नहीं गए हैं उन्हें यहां दिखाये जायेंगे।</string>
     <!-- Description of list of login exceptions that we never save logins for -->
     <string name="preferences_passwords_exceptions_description">इन साइटों के लिए लॉगिन और पासवर्ड सहेजे नहीं जाएंगे।</string>
+    <!-- Text on button to remove all saved login exceptions -->
+    <string name="preferences_passwords_exceptions_remove_all">सभी अपवादों को मिटाएं</string>
     <!-- Hint for search box in logins list -->
     <string name="preferences_passwords_saved_logins_search">लॉगिन खोजें</string>
     <!-- Option to sort logins list A-Z, alphabetically -->
@@ -1472,9 +1489,7 @@
     <string name="saved_login_duplicate">एक लॉगिन इस उपयोगकर्ता नाम के साथ मौजूद है</string>
 
     <!-- Synced Tabs -->
-    <!-- Text displayed when user is not logged into a Firefox Account -->
-    <string name="synced_tabs_connect_to_sync_account">Firefox खाते से कनेक्ट करें।</string>
-    <!-- Text displayed to ask user to connect another device as no devices found with account -->
+   <!-- Text displayed to ask user to connect another device as no devices found with account -->
     <string name="synced_tabs_connect_another_device">अन्य डिवाइस कनेक्ट करें</string>
     <!-- Text displayed asking user to re-authenticate -->
     <string name="synced_tabs_reauth">कृपया पुनः प्रमाणित करें।</string>
@@ -1495,13 +1510,4 @@
     <!-- Confirmation dialog button text when top sites limit is reached. -->
     <string name="top_sites_max_limit_confirmation_button">ठीक है, समझ गए</string>
 
-    <!-- DEPRECATED STRINGS -->
-    <!-- Button in the search view that lets a user search by using a shortcut -->
-    <string name="search_shortcuts_button">शॉर्टकट</string>
-    <!-- DEPRECATED: Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with">के साथ खोजें</string>
-    <!-- Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with_2">इस बार, इसके साथ खोजें:</string>
-    <!-- Preference title for switch preference to show search shortcuts -->
-    <string name="preferences_show_search_shortcuts">खोज शॉर्टकट्स दिखाएं</string>
     </resources>
diff --git a/app/src/main/res/values-hu/strings.xml b/app/src/main/res/values-hu/strings.xml
index 8b120b9a3..62beca7de 100644
--- a/app/src/main/res/values-hu/strings.xml
+++ b/app/src/main/res/values-hu/strings.xml
@@ -734,7 +734,7 @@
     <!-- Content description (not visible, for screen readers etc.): Opens the collection menu when pressed -->
     <string name="collection_menu_button_content_description">Gyűjtemény menü</string>
     <!-- No Open Tabs Message Header -->
-    <string name="no_collections_header1">Gyűjtsd össze a számára fontos dolgokat</string>
+    <string name="no_collections_header1">Gyűjtse össze az Önnek fontos dolgokat</string>
     <!-- Label to describe what collections are to a new user without any collections -->
     <string name="no_collections_description1">Csoportosítsa a hasonló kereséseket, webhelyeket és lapokat a későbbi gyors elérés érdekében.</string>
     <!-- Title for the "select tabs" step of the collection creator -->
diff --git a/app/src/main/res/values-in/strings.xml b/app/src/main/res/values-in/strings.xml
index f6df130c3..45bb40030 100644
--- a/app/src/main/res/values-in/strings.xml
+++ b/app/src/main/res/values-in/strings.xml
@@ -27,6 +27,29 @@
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
     <string name="open_tab_tray_plural">%1$s tab terbuka. Ketuk untuk beralih tab.</string>
 
+    <!-- Tab tray multi select title in app bar. The first parameter is the number of tabs selected -->
+    <string name="tab_tray_multi_select_title">%1$d terpilih</string>
+    <!-- Label of button in create collection dialog for creating a new collection  -->
+    <string name="tab_tray_add_new_collection">Tambah koleksi baru</string>
+    <!-- Label of editable text in create collection dialog for naming a new collection  -->
+    <string name="tab_tray_add_new_collection_name">Nama</string>
+    <!-- Label of button in save to collection dialog for selecting a current collection  -->
+    <string name="tab_tray_select_collection">Pilih koleksi</string>
+    <!-- Content description for close button while in multiselect mode in tab tray -->
+    <string name="tab_tray_close_multiselect_content_description">Keluar mode seleksi ganda</string>
+    <!-- Content description for save to collection button while in multiselect mode in tab tray -->
+    <string name="tab_tray_collection_button_multiselect_content_description">Simpan tab terpilih ke koleksi</string>
+    <!-- Content description for checkmark while tab is selected while in multiselect mode in tab tray. The first parameter is the title of the tab selected -->
+    <string name="tab_tray_item_selected_multiselect_content_description">%1$s dipilih</string>
+    <!-- Content description when tab is unselected while in multiselect mode in tab tray. The first parameter is the title of the tab unselected -->
+    <string name="tab_tray_item_unselected_multiselect_content_description">%1$s tidak dipilih</string>
+    <!-- Content description announcement when exiting multiselect mode in tab tray -->
+    <string name="tab_tray_exit_multiselect_content_description">Keluar dari mode seleksi ganda</string>
+    <!-- Content description announcement when entering multiselect mode in tab tray -->
+    <string name="tab_tray_enter_multiselect_content_description">Memasuki mode seleksi ganda, pilih tab untuk menyimpannya ke koleksi</string>
+    <!-- Content description on checkmark while tab is selected in multiselect mode in tab tray -->
+    <string name="tab_tray_multiselect_selected_content_description">Terpilih</string>
+
     <!-- About content. The first parameter is the name of the application. (For example: Fenix) -->
     <string name="about_content">%1$s diproduksi oleh Mozilla.</string>
 
@@ -152,15 +175,13 @@
     <!-- Search Fragment -->
     <!-- Button in the search view that lets a user search by scanning a QR code -->
     <string name="search_scan_button">Pindai</string>
-    <!-- Button in the search view that lets a user search by using a shortcut -->
-    <string name="search_shortcuts_button">Pintasan</string>
+    <!-- Button in the search view that lets a user change their search engine -->
+    <string name="search_engine_button">Mesin pencari</string>
     <!-- Button in the search view when shortcuts are displayed that takes a user to the search engine settings -->
     <string name="search_shortcuts_engine_settings">Setelan mesin pencari</string>
-    <!-- DEPRECATED: Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with">Cari dengan</string>
 
     <!-- Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with_2">Kali ini, cari lewat:</string>
+    <string name="search_engines_search_with">Saat ini, cari dengan:</string>
     <!-- Button in the search view that lets a user navigate to the site in their clipboard -->
     <string name="awesomebar_clipboard_title">Isi tautan dari papan klip</string>
 
@@ -270,8 +291,8 @@
     <string name="developer_tools_category">Perangkat pengembang</string>
     <!-- Preference for developers -->
     <string name="preferences_remote_debugging">Pengawakutuan jarak jauh melalui USB</string>
-    <!-- Preference title for switch preference to show search shortcuts -->
-    <string name="preferences_show_search_shortcuts">Tampilkan pintasan pencarian</string>
+    <!-- Preference title for switch preference to show search engines -->
+    <string name="preferences_show_search_engines">Tampilkan mesin pencari</string>
     <!-- Preference title for switch preference to show search suggestions -->
     <string name="preferences_show_search_suggestions">Tampilkan saran pencarian</string>
     <!-- Preference title for switch preference to show voice search button -->
@@ -525,6 +546,9 @@
     <!-- Postfix for private WebApp titles, placeholder is replaced with app name -->
     <string name="pwa_site_controls_title_private">%1$s (Mode Privat)</string>
 
+    <!-- Button in the current tab tray header in multiselect mode. Saved the selected tabs to a collection when pressed. -->
+    <string name="tab_tray_save_to_collection">Simpan</string>
+
     <!-- History -->
     <!-- Text for the button to clear all history -->
     <string name="history_delete_all">Hapus riwayat</string>
@@ -592,6 +616,8 @@
     <string name="bookmark_select_folder">Pilih folder</string>
     <!-- Confirmation message for a dialog confirming if the user wants to delete the selected folder -->
     <string name="bookmark_delete_folder_confirmation_dialog">Yakin akan menghapus folder ini?</string>
+    <!-- Confirmation message for a dialog confirming if the user wants to delete multiple items including folders. Parameter will be replaced by app name. -->
+    <string name="bookmark_delete_multiple_folders_confirmation_dialog">%s akan menghapus item terpilih.</string>
     <!-- Snackbar title shown after a folder has been deleted. This first parameter is the name of the deleted folder -->
     <string name="bookmark_delete_folder_snackbar">%1$s terhapus</string>
     <!-- Screen title for adding a bookmarks folder -->
@@ -646,8 +672,10 @@
     <!-- Bookmark snackbar message on deletion
      The first parameter is the host part of the URL of the bookmark deleted, if any -->
     <string name="bookmark_deletion_snackbar_message">%1$s terhapus</string>
-    <!-- Bookmark snackbar message on deleting multiple bookmarks -->
+    <!-- Bookmark snackbar message on deleting multiple bookmarks not including folders-->
     <string name="bookmark_deletion_multiple_snackbar_message_2">Markah dihapus</string>
+    <!-- Bookmark snackbar message on deleting multiple bookmarks including folders-->
+    <string name="bookmark_deletion_multiple_snackbar_message_3">Menghapus folder terpilih</string>
     <!-- Bookmark undo button for deletion snackbar action -->
     <string name="bookmark_undo_deletion">URUNGKAN</string>
 
@@ -743,6 +771,8 @@
     <string name="create_collection_save_to_collection_tab_selected">%d tab dipilih</string>
     <!-- Text shown in snackbar when multiple tabs have been saved in a collection -->
     <string name="create_collection_tabs_saved">Tab disimpan!</string>
+    <!-- Text shown in snackbar when one or multiple tabs have been saved in a new collection -->
+    <string name="create_collection_tabs_saved_new_collection">Koleksi disimpan!</string>
     <!-- Text shown in snackbar when one tab has been saved in a collection -->
     <string name="create_collection_tab_saved">Tab disimpan!</string>
     <!-- Content description (not visible, for screen readers etc.): button to close the collection creator -->
@@ -849,6 +879,10 @@
     <string name="qr_scanner_dialog_negative">TOLAK</string>
     <!-- Tab collection deletion prompt dialog message. Placeholder will be replaced with the collection name -->
     <string name="tab_collection_dialog_message">Yakin ingin menghapus %1$s?</string>
+    <!-- Collection and tab deletion prompt dialog message. This will show when the last tab from a collection is deleted -->
+    <string name="delete_tab_and_collection_dialog_message">Menghapus tab ini akan menghapus keseluruhan koleksi. Kamu dapat membuat koleksi baru kapan saja.</string>
+    <!-- Collection and tab deletion prompt dialog title. Placeholder will be replaced with the collection name. This will show when the last tab from a collection is deleted -->
+    <string name="delete_tab_and_collection_dialog_title">Hapus %1$s?</string>
     <!-- Tab collection deletion prompt dialog option to delete the collection -->
     <string name="tab_collection_dialog_positive">Hapus</string>
     <!-- Tab collection deletion prompt dialog option to cancel deleting the collection -->
@@ -1249,6 +1283,8 @@
     <string name="preferences_passwords_exceptions_description_empty">Info masuk dan kata sandi yang tidak disimpan akan ditampilkan di sini.</string>
     <!-- Description of list of login exceptions that we never save logins for -->
     <string name="preferences_passwords_exceptions_description">Info masuk dan kata sandi tidak akan disimpan untuk situs-situs ini.</string>
+    <!-- Text on button to remove all saved login exceptions -->
+    <string name="preferences_passwords_exceptions_remove_all">Hapus semua pengecualian</string>
     <!-- Hint for search box in logins list -->
     <string name="preferences_passwords_saved_logins_search">Cari log masuk</string>
     <!-- Option to sort logins list A-Z, alphabetically -->
@@ -1287,6 +1323,8 @@
     <string name="saved_login_copy_username">Salin nama pengguna</string>
     <!-- Content Description (for screenreaders etc) read for the button to copy a site in logins -->
     <string name="saved_login_copy_site">Salin situs</string>
+    <!-- Content Description (for screenreaders etc) read for the button to open a site in logins -->
+    <string name="saved_login_open_site">Buka situs di peramban</string>
     <!-- Content Description (for screenreaders etc) read for the button to reveal a password in logins -->
     <string name="saved_login_reveal_password">Tampilkan sandi</string>
     <!-- Content Description (for screenreaders etc) read for the button to hide a password in logins -->
@@ -1437,9 +1475,7 @@
     <string name="saved_login_duplicate">Sebuah info masuk dengan nama pengguna tersebut sudah ada</string>
 
     <!-- Synced Tabs -->
-    <!-- Text displayed when user is not logged into a Firefox Account -->
-    <string name="synced_tabs_connect_to_sync_account">Hubungkan dengan Firefox Account.</string>
-    <!-- Text displayed to ask user to connect another device as no devices found with account -->
+   <!-- Text displayed to ask user to connect another device as no devices found with account -->
     <string name="synced_tabs_connect_another_device">Hubungkan perangkat lain</string>
     <!-- Text displayed asking user to re-authenticate -->
     <string name="synced_tabs_reauth">Harap autentikasi ulang.</string>
diff --git a/app/src/main/res/values-my/strings.xml b/app/src/main/res/values-my/strings.xml
index b8a165e61..b701f979f 100644
--- a/app/src/main/res/values-my/strings.xml
+++ b/app/src/main/res/values-my/strings.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- App name for private browsing mode, only the "Private" portion should be localized. -->
-    <string name="app_name_private_2">သီးသန့် Firefox အကြိုမြင်ကွင်း</string>
-    <!-- App name for private browsing mode, only the "Private" portion should be localized. -->
-    <string name="app_name_private_3">Firefox Preview (သီးသန့်)</string>
+    <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
+    <string name="app_name_private_5">သီးသန့် %s</string>
+    <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
+    <string name="app_name_private_4">%s (သီးသန့်)</string>
     <!-- Home Fragment -->
     <!-- Content description (not visible, for screen readers etc.): "Three dot" menu button. -->
     <string name="content_description_menu">ရွေးချယ်စရာများ</string>
@@ -14,23 +14,40 @@
     <string name="content_description_disable_private_browsing_button">သီးသန့်ရှာဖွေမှုကို ပိတ်ပါ</string>
     <!-- Placeholder text shown in the search bar before a user enters text -->
     <string name="search_hint">လိပ်စာရှာဖွေ သို့ ရိုက်ထည့်ပါ</string>
-    <!-- No Open Tabs Message Header -->
-    <string name="no_open_tabs_header_2">ဖွင့်ထားသည့်တပ်ဗ်များ မရှိပါ</string>
     <!-- No Open Tabs Message Description -->
     <string name="no_open_tabs_description">သင့်ဖွင့်ထားသည့်တက်ဗ်များကို ဤနေရာတွင် ပြမည်။</string>
 
+    <!-- No Private Tabs Message Description -->
+    <string name="no_private_tabs_description">သင်၏ သီးသန့် တက်ဗ်များ ဤနေရာမှာ ပြရန်။</string>
+    <!-- Message announced to the user when tab tray is selected with 1 tab -->
+    <string name="open_tab_tray_single">ဖွင့်ထားသော တက်ဗ် 1 ခု။ တက်ဗ်များ ပြောင်းရန် ထိပါ။</string>
+    <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
+    <string name="open_tab_tray_plural">ဖွင့်ထားသော တက်ဗ် %1$s ခု။ တက်ဗ်များ ပြောင်းရန် ထိပါ။</string>
+    <!-- Tab tray multi select title in app bar. The first parameter is the number of tabs selected -->
+    <string name="tab_tray_multi_select_title">%1$d ခု ရွေးချယ်ထားပြီး</string>
+    <!-- Label of button in create collection dialog for creating a new collection  -->
+    <string name="tab_tray_add_new_collection">စုဆောင်းမှု အသစ် သို့ ထည့်ရန်</string>
+    <!-- Label of editable text in create collection dialog for naming a new collection  -->
+    <string name="tab_tray_add_new_collection_name">အမည်</string>
+    <!-- Label of button in save to collection dialog for selecting a current collection  -->
+    <string name="tab_tray_select_collection">စုဆောင်းမှု ကို ရွေးချယ်ရန်</string>
+
+    <!-- Content description for close button while in multiselect mode in tab tray -->
+    <string name="tab_tray_close_multiselect_content_description">multiselect mode ကိုပိတ်ပါ</string>
+    <!-- Content description for save to collection button while in multiselect mode in tab tray -->
+    <string name="tab_tray_collection_button_multiselect_content_description">စုဆောင်းမှု သို့ တက်ဗ်များ သိမ်းရန်</string>
+
+    <!-- About content. The first parameter is the name of the application. (For example: Fenix) -->
+    <string name="about_content">%1$s ကို Mozilla မှ ထုတ်လုပ်သည်။</string>
+
     <!-- Private Browsing -->
     <!-- Title for private session option -->
     <string name="private_browsing_title">သင် ကိုယ်ပိုင်အပိုင်းထဲတွင် ရှိနေသည်။</string>
-    <!-- Explanation for private browsing displayed to users on home view when they first enable private mode
-        The first parameter is the name of the app defined in app_name (for example: Fenix) -->
-    <string name="private_browsing_placeholder_description">% 1 $ s သည်သင်အက်ပ်မှထွက်သောအခါသို့မဟုတ်သီးသန့် tabs အားလုံးပိတ်သောအခါသင်၏ရှာဖွေခြင်းနှင့်ရှာဖွေခြင်းရာဇဝင်ကိုရှင်းလင်းသည်။ ၎င်းသည်သင့်အားဝက်ဘ်ဆိုက်များသို့မဟုတ်သင်၏အင်တာနက် ၀ န်ဆောင်မှုပေးသူများအတွက်အမည်မသိစေသော်လည်း၎င်းကိုပြုလုပ်သည်
-        သင်အွန်လိုင်းလုပ်တာကိုဒီကိရိယာကိုအသုံးပြုတဲ့သူတိုင်းထံမှလျှို့ဝှက်ထားရန်ပိုလွယ်ကူသည်။</string>
     <string name="private_browsing_common_myths">ပုဂ္ဂလိက browsing ဆိုင်ရာ အမြင်မှားများ</string>
     <!-- Delete session button to erase your history in a private session -->
     <string name="private_browsing_delete_session">အပိုင်း ကိုဖျက်ပါ</string>
 
-    <!-- Private mode shortcut "contextual feature recommender" (CFR) -->
+    <!-- Private mode shortcut "contextual feature recommendation" (CFR) -->
     <!-- Text for the main message -->
     <string name="cfr_message">သင့်မူလမြင်ကွင်းမှ သီးသန့်တဗ်များကိုဖွင့်ရန် ဖြတ်လမ်းလုပ်ပါ</string>
     <!-- Text for the positive button -->
@@ -38,6 +55,9 @@
     <!-- Text for the negative button -->
     <string name="cfr_neg_button_text">နေပါစေ</string>
 
+    <!-- Text for the negative button -->
+    <string name="search_widget_cfr_neg_button_text">ယခု မဟုတ်</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">တပ်ဗ် အသစ်</string>
@@ -45,6 +65,9 @@
     <!-- Shortcut action to open new private tab -->
     <string name="home_screen_shortcut_open_new_private_tab_2">တစ်ကိုယ်ရေသုံး တပ်ဗ်အသစ်</string>
 
+    <!-- Heading for the Top Sites block -->
+    <string name="home_screen_top_sites_heading">ထိပ်တန်း ဆိုက်များ</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">တပ်ဗ်များကို ဖွင့်ပါ</string>
@@ -87,8 +110,6 @@
     <string name="browser_menu_new_tab">တပ်ဗ် အသစ်</string>
     <!-- Browser menu button that saves the current tab to a collection -->
     <string name="browser_menu_save_to_collection_2">စုဆောင်းမှုသို့သိမ်းဆည်းပါ</string>
-    <!-- Browser menu button that opens a dialog to report issues with the current site -->
-    <string name="browser_menu_report_issue">ဆိုဘ်ပြဿနာကိုတင်ပြပါ</string>
     <!-- Browser menu button that open a share menu to share the current site -->
     <string name="browser_menu_share">မျှဝေ</string>
     <!-- Share menu title, displayed when a user is sharing their current site -->
@@ -102,7 +123,7 @@
     <!-- Browser menu text shown in custom tabs to indicate this is a Fenix tab
         The first parameter is the name of the app defined in app_name (for example: Fenix) -->
     <string name="browser_menu_powered_by2">%1$s က ထောက်ပံ့ပေးထားတယ်</string>
-    <!-- Browser menu button to put the the current page in reader mode -->
+    <!-- Browser menu button to put the current page in reader mode -->
     <string name="browser_menu_read">စာဖတ်သူမြင်ကွင်း</string>
     <!-- Browser menu button to open the current page in an external app -->
     <string name="browser_menu_open_app_link">အက်ပ်ထဲတွင်ဖွင့်ပါ</string>
@@ -123,14 +144,8 @@
     <!-- Search Fragment -->
     <!-- Button in the search view that lets a user search by scanning a QR code -->
     <string name="search_scan_button">စစ်ဆေးပါ</string>
-    <!-- Button in the search view that lets a user search by using a shortcut -->
-    <string name="search_shortcuts_button">လမ်းတိုများ</string>
     <!-- Button in the search view when shortcuts are displayed that takes a user to the search engine settings -->
     <string name="search_shortcuts_engine_settings">အင်ဂျင်အပြင်အဆင် ရှာဖွေပါ</string>
-    <!-- DEPRECATED: Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with">ရှာပါ</string>
-    <!-- Header displayed when selecting a shortcut search engine -->
-    <string name="search_shortcuts_search_with_2">ဤတစ်ကြိမ်တွင်ရှာဖွေပါ -</string>
     <!-- Button in the search view that lets a user navigate to the site in their clipboard -->
     <string name="awesomebar_clipboard_title">ကလစ်ဘုတ်မှ လင့်ခ်ကိုဖြည့်စွက်ပါ</string>
     <!-- Button in the search suggestions onboarding that allows search suggestions in private sessions -->
@@ -150,6 +165,9 @@
     <!-- Text preview for larger sized widgets -->
     <string name="search_widget_text_long">ဝဘ်တွင် ရှာဖွေပါ</string>
 
+    <!-- Content description (not visible, for screen readers etc.): Voice search -->
+    <string name="search_widget_voice">အသံဖြင့် ရှာရန်</string>
+
     <!-- Preferences -->
     <!-- Title for the settings page-->
     <string name="settings">အပြင်အဆင်များ</string>
@@ -227,10 +245,12 @@
 
     <!-- Preference for developers -->
     <string name="preferences_remote_debugging">USB မှတဆင့် Remote debugging</string>
-    <!-- Preference title for switch preference to show search shortcuts -->
-    <string name="preferences_show_search_shortcuts">ရှာဖွေမှုဖြတ်လမ်းများကိုပြပါ</string>
+    <!-- Preference title for switch preference to show search engines -->
+    <string name="preferences_show_search_engines">ရှာဖွေရေး အင်ဂျင်များပြရန်</string>
     <!-- Preference title for switch preference to show search suggestions -->
     <string name="preferences_show_search_suggestions">ရှာဖွေရေး အကြံပြုချက်များကို ဖေါ်ပြပါ</string>
+    <!-- Preference title for switch preference to show voice search button -->
+    <string name="preferences_show_voice_search">အသံရှာ ဖွေမှု ပြရန်</string>
     <!-- Preference title for switch preference to show search suggestions also in private mode -->
     <string name="preferences_show_search_suggestions_in_private">ကိုယ်ပိုင်သီးသန့်အပိုင်းများတွင်ပြပါ</string>
     <!-- Preference title for switch preference to show a clipboard suggestion when searching -->
@@ -257,6 +277,8 @@
     <string name="preferences_sync_bookmarks">စာမှတ်များ</string>
     <!-- Preference for syncing logins -->
     <string name="preferences_sync_logins">ဝင်ရောက်မှုများ</string>
+    <!-- Preference for syncing tabs -->
+    <string name="preferences_sync_tabs_2">ပွင့်နေသော တက်ဗ်များ</string>
     <!-- Preference for signing out -->
     <string name="preferences_sign_out">ထွက်ရန်</string>
     <!-- Preference displays and allows changing current FxA device name -->
@@ -278,7 +300,7 @@
     <!-- Text for displaying the default device name.
         The first parameter is the application name, the second is the device manufacturer name
         and the third is the device model. -->
-    <string name="default_device_name">%s %s အပေါ် %s</string>
+    <string name="default_device_name_2">%1$s သည် %2$s %3$s တွင်</string>
 
     <!-- Send Tab -->
     <!-- Name of the "receive tabs" notification channel. Displayed in the "App notifications" system settings for the app -->
@@ -348,7 +370,7 @@
 
     <!-- Pairing Feature strings -->
     <!-- Instructions on how to access pairing -->
-    <string name="pair_instructions"><![CDATA[ကျူအာကုတ်ရရှိရန် သင့်ကွန်ပျူတာပေါ်မှ Firefox တွင် <b>firefox.com/pair</b> သို့လည်ပတ်ပါ။]]></string>
+    <string name="pair_instructions_2"><![CDATA[<b>firefox.com/pair</b> တွင်ပြနေသော QR  ကုဒ်ကို ဖတ်ပါ]]></string>
     <!-- Button to open camera for pairing -->
     <string name="pair_open_camera">ကင်မရာဖွင့်ပါ</string>
     <!-- Button to cancel pairing -->
@@ -393,8 +415,6 @@
     <string name="library_reading_list">စာဖတ်စာရင်း</string>
     <!-- Menu Item Label for Search in Library -->
     <string name="library_search">ရှာပါ</string>
-    <!-- Library Page Title -->
-    <string name="library_title">စာကြည့်တိုက်</string>
     <!-- Settings Page Title -->
     <string name="settings_title">အပြင်အဆင်များ</string>
     <!-- Content description (not visible, for screen readers etc.): "Menu icon for items on a history item" -->
@@ -412,6 +432,24 @@
     <string name="tabs_header_private_tabs_title">သီးသန့် တဗ် များ</string>
     <!-- Content description (not visible, for screen readers etc.): Add tab button. Adds a news tab when pressed -->
     <string name="add_tab">တက်ဗ် ထည့်ပါ</string>
+    <!-- Content description (not visible, for screen readers etc.): Add tab button. Adds a news tab when pressed -->
+    <string name="add_private_tab">သီးသန့် တက်ဗ် ထည့်</string>
+    <!-- Text for the new tab button to indicate adding a new private tab in the tab -->
+    <string name="tab_drawer_fab_content">သီးသန့်</string>
+    <!-- Text shown as the title of the open tab tray -->
+    <string name="tab_tray_title">ပွင့်နေသည့် တက်ဗ်များ</string>
+    <!-- Text shown in the menu for saving tabs to a collection -->
+    <string name="tab_tray_menu_item_save">စုစည်းမှု ထဲသို့ သိမ်းရန်</string>
+    <!-- Text shown in the menu for sharing all tabs -->
+    <string name="tab_tray_menu_item_share">တက်ဗ်များ အားလုံး မျှဝေရန်</string>
+    <!-- Text shown in the menu for closing all tabs -->
+    <string name="tab_tray_menu_item_close">တက်ဗ်များ အားလုံး ပိတ်ရန်</string>
+    <!-- Shortcut action to open new tab -->
+    <string name="tab_tray_menu_open_new_tab">တက်ဗ် အသစ်</string>
+    <!-- Shortcut action to open the home screen -->
+    <string name="tab_tray_menu_home">မူလ သို့ သွားရန်</string>
+    <!-- Content description (not visible, for screen readers etc.): Removes tab from collection button. Removes the selected tab from collection when pressed -->
+    <string name="remove_tab_from_collection">စုစည်းမှု ထဲမှ တက်ဗ် ကို ဖယ်ရှားရန်</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">တပ်ဗ်ကို ပိတ်ရန်</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -423,7 +461,7 @@
     <!-- Open tabs menu item to share all tabs -->
     <string name="tabs_menu_share_tabs">တပ်ဗ်များကို မျှဝေပါ</string>
     <!-- Open tabs menu item to save tabs to collection -->
-    <string name="tabs_menu_save_to_collection">စုဆောင်းမှုသို့သိမ်းဆည်းပါ</string>
+    <string name="tabs_menu_save_to_collection1">စုဆောင်းမှု သို့ တက်ဗ်များ သိမ်းရန်</string>
     <!-- Content description (not visible, for screen readers etc.): Opens the tab menu when pressed -->
     <string name="tab_menu">တဗ်မန်နူး</string>
     <!-- Tab menu item to share the tab -->
@@ -447,13 +485,24 @@
     <!-- Text for the menu button to remove a top site -->
     <string name="remove_top_site">ဖယ်ရှားပါ</string>
 
+    <!-- Button in the current tab tray header in multiselect mode. Saved the selected tabs to a collection when pressed. -->
+    <string name="tab_tray_save_to_collection">သိမ်းရန်</string>
+
     <!-- History -->
     <!-- Text for the button to clear all history -->
     <string name="history_delete_all">မှတ်တမ်းကို ဖျက်ပါ</string>
     <!-- Text for the dialog to confirm clearing all history -->
     <string name="history_delete_all_dialog">သင့် မှတ်တမ်းကို ဖျက်ပစ်မှာ သေချာပြီလား?</string>
+    <!-- Text for the snackbar to confirm that multiple browsing history items has been deleted -->
+    <string name="history_delete_multiple_items_snackbar">မှတ်တမ်း ကို ဖျက်ပြီး</string>
+    <!-- Text for the snackbar to confirm that a single browsing history item has been deleted. The first parameter is the shortened URL of the deleted history item. -->
+    <string name="history_delete_single_item_snackbar">%1$s ခု ဖျက်ပြီး</string>
     <!-- Text for positive action to delete history in deleting history dialog -->
     <string name="history_clear_dialog">ရှင်းလင်းပါ</string>
+    <!-- History overflow menu copy button -->
+    <string name="history_menu_copy_button">ကူးရန်</string>
+    <!-- History overflow menu share button -->
+    <string name="history_menu_share_button">မျှဝေရန်</string>
     <!-- Text for the button to delete a single history item -->
     <string name="history_delete_item">ဖျက်ပါ</string>
     <!-- History multi select title in app bar
@@ -554,8 +603,6 @@
     <!-- Bookmark snackbar message on deletion
      The first parameter is the host part of the URL of the bookmark deleted, if any -->
     <string name="bookmark_deletion_snackbar_message">%1$s ဖျက်ပြီး</string>
-    <!-- Bookmark snackbar message on deleting multiple bookmarks -->
-    <string name="bookmark_deletion_multiple_snackbar_message">ရွေးချယ်ထားသည့်အမှတ်အသားများကိုဖျက်ပစ်သည်</string>
     <!-- Bookmark undo button for deletion snackbar action -->
     <string name="bookmark_undo_deletion">မလုပ်တော့ပါ</string>
 
@@ -618,16 +665,14 @@
     <string name="delete_browsing_data_quit_off">ပိတ်ပါ</string>
 
     <!-- Collections -->
-    <!-- Label to describe what collections are to a new user without any collections -->
-    <string name="collections_description">သင့်အတွက်အရေးကြီးတဲ့အရာတွေကိုစုဆောင်းပါ။ စတင်ရန်စုဆောင်းမှုအသစ်တစ်ခုရရှိရန်ဖွင့်ထားသောတဗ်များကိုသိမ်းဆည်းပါ။</string>
     <!-- Collections header on home fragment -->
     <string name="collections_header">စုဆည်းမှုများ</string>
     <!-- Content description (not visible, for screen readers etc.): Opens the collection menu when pressed -->
     <string name="collection_menu_button_content_description">စုဆောင်းခြင်းမီနူး</string>
     <!-- No Open Tabs Message Header -->
-    <string name="no_collections_header">စုစည်းမှု မရှိပါ</string>
-    <!-- No Open Tabs Message Description -->
-    <string name="no_collections_description">သင်၏ စုစည်းမှုများကိုဤနေရာတွင်ပြလိမ့်မည်။</string>
+    <string name="no_collections_header1">သင် အတွက် အရေးပါသည်များ ကို စုစည်းပါ</string>
+    <!-- Label to describe what collections are to a new user without any collections -->
+    <string name="no_collections_description1">ရှာဖွေခြင်းများ၊ ဆိုက်များ နှင့် တက်ဗ်များ ကို အမျိုးအစားတူစုခြင်းဖြင့် နောင်တွင် မြန်မြန် ရယူနိုင်လိမ့်မည်။</string>
     <!-- Title for the "select tabs" step of the collection creator -->
     <string name="create_collection_select_tabs">တက်ပ်များကိုရွေးပါ</string>
     <!-- Title for the "select collection" step of the collection creator -->
@@ -651,6 +696,8 @@
     <string name="create_collection_save_to_collection_tab_selected">% d tabs ကိုရွေးချယ်ထားပါသည်</string>
     <!-- Text shown in snackbar when multiple tabs have been saved in a collection -->
     <string name="create_collection_tabs_saved">တဗ်များကိုသိမ်းထားပြီး</string>
+    <!-- Text shown in snackbar when one or multiple tabs have been saved in a new collection -->
+    <string name="create_collection_tabs_saved_new_collection">စုစည်းမှု သိမ်းပြီး။</string>
     <!-- Text shown in snackbar when one tab has been saved in a collection -->
     <string name="create_collection_tab_saved">တဗ်ကိုသိမ်းထားပြီး</string>
     <!-- Content description (not visible, for screen readers etc.): button to close the collection creator -->
@@ -658,6 +705,9 @@
     <!-- Button to save currently selected tabs in the "select tabs" step of the collection creator-->
     <string name="create_collection_save">သိမ်းပါ</string>
 
+    <!-- Snackbar action to view the collection the user just created or updated -->
+    <string name="create_collection_view">မြင်ကွင်း</string>
+
     <!-- Default name for a new collection in "name new collection" step of the collection creator. %d is a placeholder for the number of collections-->
     <string name="create_collection_default_name">စုဆည်းမှု %d</string>
 
@@ -752,6 +802,10 @@
     <string name="qr_scanner_dialog_negative">Deny</string>
     <!-- Tab collection deletion prompt dialog message. Placeholder will be replaced with the collection name -->
     <string name="tab_collection_dialog_message">%1$s ကိုသင်ဖျက်လိုသလား။</string>
+    <!-- Collection and tab deletion prompt dialog message. This will show when the last tab from a collection is deleted -->
+    <string name="delete_tab_and_collection_dialog_message">ဤ တက်ဗ် ကို ဖျက်ခြင်း ကြောင့် ဤ စုစည်းမှုတစ်ခုလုံး ပျက်သွားလိမ့်မည်။ သင် သည် စုစည်းမှု အသစ် ကိုအချိန်မရွေး ပြုလုပ်နိုင်ပါသည်။</string>
+    <!-- Collection and tab deletion prompt dialog title. Placeholder will be replaced with the collection name. This will show when the last tab from a collection is deleted -->
+    <string name="delete_tab_and_collection_dialog_title">%1$s ကိုဖျက်မှာလား?</string>
     <!-- Tab collection deletion prompt dialog option to delete the collection -->
     <string name="tab_collection_dialog_positive">ဖျက်ပါ</string>
     <!-- Tab collection deletion prompt dialog option to cancel deleting the collection -->
@@ -768,16 +822,11 @@
     <!-- Title for Accessibility Text Size Scaling Preference -->
     <string name="preference_accessibility_font_size_title">စာလုံးအရွယ်အစား</string>
 
-    <!-- Title for Accessibility Text Automatic Size Scaling Preference -->
-    <string name="preference_accessibility_auto_size">အလိုအလျောက်စာလုံးအရွယ်အစား</string>
-
     <!-- Summary for Accessibility Text Automatic Size Scaling Preference -->
     <string name="preference_accessibility_auto_size_summary">စာလုံးအရွယ်အစားသည်သင်၏ဖုန်းနှင့်ကိုက်ညီပါလိမ့်မည်။ဤနေရာတွင်ဖောင့်အရွယ်အစားကိုစီမံခန့်ခွဲရန်ကိုပိတ်ပါ။</string>
 
     <!-- Title for the Delete browsing data preference -->
     <string name="preferences_delete_browsing_data">ကြည့်ရှုမှုအချက်အလက်များ ဖျက်ပါ</string>
-    <!-- Title for the tabs item in Delete browsing data -->
-    <string name="preferences_delete_browsing_data_tabs_title">တပ်ဗ်များကို ဖွင့်ပါ</string>
     <!-- Subtitle for the tabs item in Delete browsing data, parameter will be replaced with the number of open tabs -->
     <string name="preferences_delete_browsing_data_tabs_subtitle">%d တဗ်များ</string>
     <!-- Title for the data and history items in Delete browsing data -->
@@ -809,8 +858,6 @@
     <string name="preference_summary_delete_browsing_data_on_quit">ပင်မမန်နူးမှ \&quot;Quit\&quot; ကိုသင်ရွေးလျှင် ရှာဖွေအချက်အလက်များကိုအလိုအလျောက်ဖျက်ပါမည်။</string>
     <!-- Summary for the Delete browsing data on quit preference. "Quit" translation should match delete_browsing_data_on_quit_action translation. -->
     <string name="preference_summary_delete_browsing_data_on_quit_2">ပင်မမန်နူးမှ \&quot;Quit\&quot; ကိုသင်ရွေးလျှင် ရှာဖွေအချက်အလက်များကိုအလိုအလျောက်ဖျက်ပါမည်။</string>
-    <!-- Category for history items to delete on quit in delete browsing data on quit -->
-    <string name="preferences_delete_browsing_data_on_quit_browsing_history">ရှာဖွေကြည့်ရှုမှု မှတ်တမ်း</string>
     <!-- Action item in menu for the Delete browsing data on quit feature -->
     <string name="delete_browsing_data_on_quit_action">ထွက်ရန်</string>
 
@@ -862,20 +909,9 @@
     <string name="onboarding_firefox_account_sync_is_on">ထပ်တူပြုခြင်းဖွင့်ထားသည်</string>
     <!-- text to display in the snackbar if automatic sign-in fails. user may try again -->
     <string name="onboarding_firefox_account_automatic_signin_failed">ဝင်ရောက်ရန်မအောင်မြင်ပါ</string>
-    <!-- text for the tracking protection onboarding card header -->
-    <string name="onboarding_tracking_protection_header">သင့်ကိုယ်သင်ကာကွယ်ပါ</string>
-    <!-- text for the tracking protection card description
-    The first parameter is the name of the app (e.g. Firefox Preview) -->
-    <string name="onboarding_tracking_protection_description1">သင့်ကိုအွန်လိုင်းပေါ်တွင် ခြေရာခံခြင်းမှ %s မှ ဆိုက်များကိုရပ်ဆိုင်းပြီးကူညီလိမ့်မည်။</string>
-    <!-- text for tracking protection radio button option for standard level of blocking -->
-    <string name="onboarding_tracking_protection_standard_button">စံ</string>
 
-    <!-- text for standard blocking option button description -->
-    <string name="onboarding_tracking_protection_standard_button_description">ခြေရာခံသူများကိုပိတ်သော်လည်း စာမျက်နှာများကိုပုံမှန်ဆွဲတင်ခွင့်ပြုပါ။</string>
     <!-- text for tracking protection radio button option for strict level of blocking -->
     <string name="onboarding_tracking_protection_strict_button">တင်းကြပ်စွာ (အကြံပြုသည်)</string>
-    <!-- text for strict blocking option button description -->
-    <string name="onboarding_tracking_protection_strict_button_description">ပိုမိုကောင်းမွန်သောကာကွယ်မှုနှင့်စွမ်းဆောင်ရည်အတွက်ခြေရာခံသူများကိုပိုမိုပိတ်ဆို့ထားသောကြောင့်အချို့သောဆိုဒ်များကိုအလုပ်မလုပ်နိုင်ပါ</string>
     <!-- text for the toolbar position card header
         In English this is an idiom for "choose a side as in an argument or fight"
         but it is ok to make this more literally about "choosing a position in a physical space -->
@@ -959,33 +995,15 @@
     <string name="preference_enhanced_tracking_protection_explanation">သင့်ရဲ့အချက်အလက်များကိုသင်ကိုယ်တိုင်သိမ်းထားပါ။ %s သည်အွန်လိုင်းတွင်လုပ်ဆောင်သောအသုံးပြုမှုများကို ခြေရာခံမှုများမှသင့်အားကာကွယ်ပေးသည်။</string>
     <!-- Text displayed that links to website about enhanced tracking protection -->
     <string name="preference_enhanced_tracking_protection_explanation_learn_more">ပိုမိုလေ့လာရန်</string>
-    <!-- Preference for enhanced tracking protection for the standard protection settings -->
-    <string name="preference_enhanced_tracking_protection_standard_option">စံ</string>
-    <!-- Preference for enhanced tracking protection for the standard protection settings -->
-    <string name="preference_enhanced_tracking_protection_standard">စံ (အကြံပြုချက်)</string>
-    <!-- Preference description for enhanced tracking protection for the standard protection settings -->
-    <string name="preference_enhanced_tracking_protection_standard_description">လုံခြုံရေးနှင့် စွမ်းဆောင်ရည်ကို ဟန်ချက်ညီစေရန် ပြုလုပ်ထားသည်။</string>
-    <!-- Preference description for enhanced tracking protection for the standard protection settings -->
-    <string name="preference_enhanced_tracking_protection_standard_description_2">စာမျက်နှာများသည်ပုံမှန်အားဖြင့်ဆွဲတင်လိမ့်မည်၊ သို့သော် ခြေရာခံတွေကိုပိတ်လိမ့်မည်။</string>
     <!--  Accessibility text for the Standard protection information icon  -->
     <string name="preference_enhanced_tracking_protection_standard_info_button">စံချိန်မြင့်ခြေရာခံကာကွယ်ခြင်းက ဘာတွေကိုပိတ်ဆို့မလဲ</string>
     <!-- Preference for enhanced tracking protection for the strict protection settings -->
     <string name="preference_enhanced_tracking_protection_strict">တင်းကျပ်ပါ</string>
-    <!-- Preference for enhanced tracking protection for the strict protection settings, default setting -->
-    <string name="preference_enhanced_tracking_protection_strict_default">တင်းကျပ်ရန် (ပုံမှန်)</string>
-    <!-- Preference description for enhanced tracking protection for the strict protection settings -->
-    <string name="preference_enhanced_tracking_protection_strict_default_description">ပိုမိုအားကောင်းသည့်ခြေရာခံကာကွယ်ခြင်းနှင့်ပိုမိုမြန်ဆန်သောစွမ်းဆောင်နိုင်မှုများရှိသော်လည်းအချို့သောဆိုဒ်များမှာအလုပ်မလုပ်နိုင်ပါ။</string>
-    <!-- Preference for enhanced tracking protection for the standard protection settings -->
-    <string name="preference_enhanced_tracking_protection_strict_recommended">တင်းကြပ်စွာ (အကြံပြုသည်)</string>
-    <!-- Preference description for enhanced tracking protection for the strict protection settings -->
-    <string name="preference_enhanced_tracking_protection_strict_description">ပိုမိုလုံခြုံသောကာကွယ်မှုဖြစ်သော်လည်းအချို့သောဆိုဒ်များသို့မဟုတ်ပါဝင်သည့်အရာများအားပျက်စီးစေနိုင်သည်။</string>
     <!--  Accessibility text for the Strict protection information icon  -->
     <string name="preference_enhanced_tracking_protection_strict_info_button">ကန့်သတ်ခြေရာခံကာကွယ်ခြင်းက ဘာတွေကိုပိတ်ဆို့မလဲ</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom">စိတ်ကြိုက်</string>
 
-    <!-- Preference description for enhanced tracking protection for the strict protection settings -->
-    <string name="preference_enhanced_tracking_protection_custom_description">ပိတ်ဆို့ရန် ခြေရာခံသူများနှင့် scriptsများကို ရွေးချယ်ပါ။</string>
     <!--  Accessibility text for the Strict protection information icon  -->
     <string name="preference_enhanced_tracking_protection_custom_info_button">စိတ်ကြိုက်ခြေရာခံကာကွယ်ခြင်းက ဘာတွေကိုပိတ်ဆို့မလဲ</string>
     <!-- Header for categories that are being blocked by current Enhanced Tracking Protection settings -->
@@ -1035,8 +1053,6 @@
     <string name="etp_tracking_content_title">နောက်ယောင်ခံသည့် အရာများ</string>
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">ခြေရာခံခြင်းကုဒ်ပါရှိခြင်းကြောင့်အပြင်ဘက်ကြော်ငြာများ၊ဗွီဒီယိုများနှင့်အခြားအကြောင်းအရာများကိုတားမြစ်သည်။ အချို့သော ဆိုက်၏လုပ်ဆောင်နိုင်စွမ်းကိုအကျိုးသက်ရောက်နိုင်သည်။</string>
-    <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_message_2">စိတ်မချရ၍ %s သည် ခြေရာခံသူများကိုဤဆိုက်ပေါ်တွင်ပိတ်ဆို့ထားသည်။ ဘာတွေကိုပိတ်ဆို့ထားလဲနှိပ်၍ကြည့်ပါ။</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">ဤဆိုက်အတွက် ကာကွယ်မှုဖွင့်ထားသည်။</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1284,4 +1300,5 @@
     <string name="login_deletion_confirmation">ဤဝင်ရောက်မှုကိုဖျက်မှာသေချာပါသလား။</string>
     <!-- Positive action of a dialog asking to delete  -->
     <string name="dialog_delete_positive">ဖျက်ပါ</string>
-</resources>
+
+    </resources>
diff --git a/app/src/main/res/values-oc/strings.xml b/app/src/main/res/values-oc/strings.xml
index 4f0f63ee9..539783b21 100644
--- a/app/src/main/res/values-oc/strings.xml
+++ b/app/src/main/res/values-oc/strings.xml
@@ -33,12 +33,16 @@
     <string name="tab_tray_add_new_collection_name">Nom</string>
     <!-- Label of button in save to collection dialog for selecting a current collection  -->
     <string name="tab_tray_select_collection">Seleccionar una colleccion</string>
+    <!-- Content description for close button while in multiselect mode in tab tray -->
+    <string name="tab_tray_close_multiselect_content_description">Sortir del mòde seleccion multipla</string>
     <!-- Content description for save to collection button while in multiselect mode in tab tray -->
     <string name="tab_tray_collection_button_multiselect_content_description">Enregistrar los onglets seleccionats dins la colleccion</string>
     <!-- Content description for checkmark while tab is selected while in multiselect mode in tab tray. The first parameter is the title of the tab selected -->
     <string name="tab_tray_item_selected_multiselect_content_description">%1$s seleccionat</string>
     <!-- Content description when tab is unselected while in multiselect mode in tab tray. The first parameter is the title of the tab unselected -->
     <string name="tab_tray_item_unselected_multiselect_content_description">%1$s deseleccionat</string>
+    <!-- Content description announcement when exiting multiselect mode in tab tray -->
+    <string name="tab_tray_exit_multiselect_content_description">Sortida del mòde seleccion multipla</string>
     <!-- Content description on checkmark while tab is selected in multiselect mode in tab tray -->
     <string name="tab_tray_multiselect_selected_content_description">Seleccionat</string>
 
@@ -912,6 +916,8 @@
 
     <!-- Dialog message to the user asking to delete browsing data. -->
     <string name="delete_browsing_data_prompt_message">Aquò suprimirà totas las donadas de navegacion.</string>
+    <!-- Dialog message to the user asking to delete browsing data. Parameter will be replaced by app name. -->
+    <string name="delete_browsing_data_prompt_message_3">%s suprimirà las donadas de navegacion seleccionadas.</string>
     <!-- Text for the cancel button for the data deletion dialog -->
     <string name="delete_browsing_data_prompt_cancel">Anullar</string>
 
@@ -1123,6 +1129,10 @@
     <!-- About page link text to open what's new link -->
     <string name="about_whats_new">Qu’es nòu dins %s</string>
 
+    <!-- Open source licenses page title
+    The first parameter is the app name -->
+    <string name="open_source_licenses_title">%s | Bibliotècas liuras</string>
+
     <!-- About page link text to open support link -->
     <string name="about_support">Assisténcia</string>
 
@@ -1192,6 +1202,10 @@
     <string name="preferences_passwords_saved_logins_description_empty_learn_more_link">Per ne saber mai sus Sync.</string>
     <!-- Preference to access list of login exceptions that we never save logins for -->
     <string name="preferences_passwords_exceptions">Excepcions</string>
+    <!-- Empty description of list of login exceptions that we never save logins for -->
+    <string name="preferences_passwords_exceptions_description_empty">Los identificants e senhals pas salvats seràn mostrats aquí.</string>
+    <!-- Description of list of login exceptions that we never save logins for -->
+    <string name="preferences_passwords_exceptions_description">Los identificants e senhals seràn pas salvats per aquestes sites.</string>
     <!-- Text on button to remove all saved login exceptions -->
     <string name="preferences_passwords_exceptions_remove_all">Suprimir totas las excepcions</string>
     <!-- Hint for search box in logins list -->
@@ -1245,6 +1259,8 @@
     <string name="logins_warning_dialog_set_up_now">O configurar ara</string>
     <!-- Title of PIN verification dialog to direct users to re-enter their device credentials to access their logins -->
     <string name="logins_biometric_prompt_message_pin">Desverrolhatz lo periferic</string>
+    <!-- Title for Accessibility Force Enable Zoom Preference -->
+    <string name="preference_accessibility_force_enable_zoom">Zoom per totes los sites</string>
     <!-- Saved logins sorting strategy menu item -by name- (if selected, it will sort saved logins alphabetically) -->
     <string name="saved_logins_sort_strategy_alphabetically">Nom (A-Z)</string>
     <!-- Saved logins sorting strategy menu item -by last used- (if selected, it will sort saved logins by last used) -->
@@ -1274,6 +1290,8 @@
     <!-- Text for the button to learn more about adding a custom search engine -->
     <string name="search_add_custom_engine_learn_more_label">Ne saber mai</string>
 
+    <!-- Accessibility description for the form in which details about the custom search engine are entered -->
+    <string name="search_add_custom_engine_form_description">Detalhs del motor de recèrca personalizat</string>
     <!-- Accessibility description for the 'Learn more' link -->
     <string name="search_add_custom_engine_learn_more_description">Ligam per ne saber mai</string>
 
@@ -1360,6 +1378,9 @@
     <!-- Voice search prompt description displayed after the user presses the voice search button -->
     <string name="voice_search_explainer">Parlatz ara</string>
 
+    <!--  The error message in edit login view when a duplicate username exists. -->
+    <string name="saved_login_duplicate">Un identificant amb aqueste nom d’utilizaire existís ja</string>
+
     <!-- Synced Tabs -->
    <!-- Text displayed to ask user to connect another device as no devices found with account -->
     <string name="synced_tabs_connect_another_device">Connectatz un autre periferic.</string>
diff --git a/app/src/main/res/values-sl/strings.xml b/app/src/main/res/values-sl/strings.xml
index bf1cd432d..32462293b 100644
--- a/app/src/main/res/values-sl/strings.xml
+++ b/app/src/main/res/values-sl/strings.xml
@@ -25,6 +25,8 @@
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
     <string name="open_tab_tray_plural">Odprtih zavihkov: %1$s. Tapnite za preklop zavihkov.</string>
 
+    <!-- Tab tray multi select title in app bar. The first parameter is the number of tabs selected -->
+    <string name="tab_tray_multi_select_title">%1$d izbranih</string>
     <!-- Label of button in create collection dialog for creating a new collection  -->
     <string name="tab_tray_add_new_collection">Dodaj novo zbirko</string>
     <!-- Label of editable text in create collection dialog for naming a new collection  -->
diff --git a/app/src/main/res/values/preference_keys.xml b/app/src/main/res/values/preference_keys.xml
index 700697231..317651afd 100644
--- a/app/src/main/res/values/preference_keys.xml
+++ b/app/src/main/res/values/preference_keys.xml
@@ -149,6 +149,7 @@
     <!-- Privacy Settings -->
     <string name="pref_key_open_links_in_a_private_tab" translatable="false">pref_key_open_links_in_a_private_tab</string>
     <string name="pref_key_open_links_in_external_app" translatable="false">pref_key_open_links_in_external_app</string>
+    <string name="pref_key_external_download_manager" translatable="false">pref_key_external_download_manager</string>
     <string name="pref_key_allow_screenshots_in_private_mode" translatable="false">pref_key_allow_screenshots_in_private_mode</string>
 
     <!-- Quick Action Sheet -->
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0047a3592..3040ca5cd 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -296,6 +296,8 @@
     <string name="preferences_account_settings">Account settings</string>
     <!-- Preference for open links in third party apps -->
     <string name="preferences_open_links_in_apps">Open links in apps</string>
+    <!-- Preference for open download with an external download manager app -->
+    <string name="preferences_external_download_manager">External download manager</string>
     <!-- Preference for add_ons -->
     <string name="preferences_addons">Add-ons</string>
 
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 8e6062573..04de02720 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -132,6 +132,12 @@
             android:key="@string/pref_key_open_links_in_external_app"
             android:title="@string/preferences_open_links_in_apps" />
 
+        <androidx.preference.SwitchPreference
+            android:defaultValue="false"
+            android:icon="@drawable/ic_download"
+            android:key="@string/pref_key_external_download_manager"
+            android:title="@string/preferences_external_download_manager" />
+
         <androidx.preference.SwitchPreference
             android:defaultValue="true"
             android:icon="@drawable/ic_info"
diff --git a/app/src/test/java/org/mozilla/fenix/components/toolbar/DefaultBrowserToolbarControllerTest.kt b/app/src/test/java/org/mozilla/fenix/components/toolbar/DefaultBrowserToolbarControllerTest.kt
index ec53861a2..196b9cc12 100644
--- a/app/src/test/java/org/mozilla/fenix/components/toolbar/DefaultBrowserToolbarControllerTest.kt
+++ b/app/src/test/java/org/mozilla/fenix/components/toolbar/DefaultBrowserToolbarControllerTest.kt
@@ -217,7 +217,7 @@ class DefaultBrowserToolbarControllerTest {
 
     @Test
     fun handleToolbarBackPress() = runBlockingTest {
-        val item = ToolbarMenu.Item.Back
+        val item = ToolbarMenu.Item.Back(false)
 
         val controller = createController(scope = this)
         controller.handleToolbarItemInteraction(item)
@@ -226,6 +226,17 @@ class DefaultBrowserToolbarControllerTest {
         verify { sessionUseCases.goBack(currentSession) }
     }
 
+    @Test
+    fun handleToolbarBackLongPress() = runBlockingTest {
+        val item = ToolbarMenu.Item.Back(true)
+
+        val controller = createController(scope = this)
+        controller.handleToolbarItemInteraction(item)
+
+        verify { metrics.track(Event.BrowserMenuItemTapped(Event.BrowserMenuItemTapped.Item.BACK)) }
+        verify { navController.navigate(R.id.action_global_tabHistoryDialogFragment) }
+    }
+
     @Test
     fun handleToolbarForwardPress() = runBlockingTest {
         val item = ToolbarMenu.Item.Forward(false)
diff --git a/app/src/test/java/org/mozilla/fenix/home/DefaultSessionControlControllerTest.kt b/app/src/test/java/org/mozilla/fenix/home/DefaultSessionControlControllerTest.kt
index 201515011..bf63fcce6 100644
--- a/app/src/test/java/org/mozilla/fenix/home/DefaultSessionControlControllerTest.kt
+++ b/app/src/test/java/org/mozilla/fenix/home/DefaultSessionControlControllerTest.kt
@@ -212,6 +212,7 @@ class DefaultSessionControlControllerTest {
     fun handleCollectionShareTabsClicked() {
         val collection = mockk<TabCollection> {
             every { tabs } returns emptyList()
+            every { title } returns ""
         }
         controller.handleCollectionShareTabsClicked(collection)
 
diff --git a/app/src/test/java/org/mozilla/fenix/share/ShareControllerTest.kt b/app/src/test/java/org/mozilla/fenix/share/ShareControllerTest.kt
index bdea82de0..ace841db6 100644
--- a/app/src/test/java/org/mozilla/fenix/share/ShareControllerTest.kt
+++ b/app/src/test/java/org/mozilla/fenix/share/ShareControllerTest.kt
@@ -48,6 +48,7 @@ class ShareControllerTest {
     // Need a valid context to retrieve Strings for example, but we also need it to return our "metrics"
     private val context: Context = spyk(testContext)
     private val metrics: MetricController = mockk(relaxed = true)
+    private val shareSubject = "shareSubject"
     private val shareData = listOf(
         ShareData(url = "url0", title = "title0"),
         ShareData(url = "url1", title = "title1")
@@ -65,7 +66,7 @@ class ShareControllerTest {
     private val dismiss = mockk<(ShareController.Result) -> Unit>(relaxed = true)
     private val recentAppStorage = mockk<RecentAppsStorage>(relaxed = true)
     private val controller = DefaultShareController(
-        context, shareData, sendTabUseCases, snackbar, navController,
+        context, shareSubject, shareData, sendTabUseCases, snackbar, navController,
         recentAppStorage, testCoroutineScope, dismiss
     )
 
@@ -91,8 +92,8 @@ class ShareControllerTest {
         // needed for capturing the actual Intent used the `slot` one doesn't have this flag so we
         // need to use an Activity Context.
         val activityContext: Context = mockk<Activity>()
-        val testController = DefaultShareController(activityContext, shareData, mockk(), mockk(), mockk(),
-            recentAppStorage, testCoroutineScope, dismiss)
+        val testController = DefaultShareController(activityContext, shareSubject, shareData, mockk(),
+            mockk(), mockk(), recentAppStorage, testCoroutineScope, dismiss)
         every { activityContext.startActivity(capture(shareIntent)) } just Runs
         every { recentAppStorage.updateRecentApp(appShareOption.activityName) } just Runs
 
@@ -101,6 +102,7 @@ class ShareControllerTest {
         // Check that the Intent used for querying apps has the expected structure
         assertTrue(shareIntent.isCaptured)
         assertEquals(Intent.ACTION_SEND, shareIntent.captured.action)
+        assertEquals(shareSubject, shareIntent.captured.extras!![Intent.EXTRA_SUBJECT])
         assertEquals(textToShare, shareIntent.captured.extras!![Intent.EXTRA_TEXT])
         assertEquals("text/plain", shareIntent.captured.type)
         assertEquals(Intent.FLAG_ACTIVITY_NEW_TASK, shareIntent.captured.flags)
@@ -124,8 +126,8 @@ class ShareControllerTest {
         // needed for capturing the actual Intent used the `slot` one doesn't have this flag so we
         // need to use an Activity Context.
         val activityContext: Context = mockk<Activity>()
-        val testController = DefaultShareController(activityContext, shareData, mockk(), snackbar,
-            mockk(), mockk(), testCoroutineScope, dismiss)
+        val testController = DefaultShareController(activityContext, shareSubject, shareData, mockk(),
+            snackbar, mockk(), mockk(), testCoroutineScope, dismiss)
         every { activityContext.startActivity(capture(shareIntent)) } throws SecurityException()
         every { activityContext.getString(R.string.share_error_snackbar) } returns "Cannot share to this app"
 
@@ -247,6 +249,7 @@ class ShareControllerTest {
     fun `getSuccessMessage should return different strings depending on the number of shared tabs`() {
         val controllerWithOneSharedTab = DefaultShareController(
             context,
+            shareSubject,
             listOf(ShareData(url = "url0", title = "title0")),
             mockk(),
             mockk(),
@@ -280,7 +283,7 @@ class ShareControllerTest {
             ShareData(url = "url1")
         )
         val controller = DefaultShareController(
-            context, shareData, sendTabUseCases, snackbar, navController,
+            context, shareSubject, shareData, sendTabUseCases, snackbar, navController,
             recentAppStorage, testCoroutineScope, dismiss
         )
 
@@ -288,6 +291,21 @@ class ShareControllerTest {
         assertEquals(expectedShareText, controller.getShareText())
     }
 
+    @Test
+    fun `getShareSubject will return "shareSubject" if that is non null`() {
+        assertEquals(shareSubject, controller.getShareSubject())
+    }
+
+    @Test
+    fun `getShareSubject will return a concatenation of tab titles if "shareSubject" is null`() {
+        val controller = DefaultShareController(
+            context, null, shareData, sendTabUseCases, snackbar, navController,
+            recentAppStorage, testCoroutineScope, dismiss
+        )
+
+        assertEquals("title0, title1", controller.getShareSubject())
+    }
+
     @Test
     fun `ShareTab#toTabData maps a list of ShareTab to a TabData list`() {
         var tabData: List<TabData>
diff --git a/config/detekt.yml b/config/detekt.yml
index 56b6041c2..2568a929e 100644
--- a/config/detekt.yml
+++ b/config/detekt.yml
@@ -76,7 +76,7 @@ complexity:
     # https://github.com/mozilla-mobile/fenix/issues/4861
     threshold: 75
   LongParameterList:
-    active: trued
+    active: true
     excludes: "**/*Controller.kt, **/*Integration.kt"
     functionThreshold: 6
     constructorThreshold: 7