diff --git a/app/build.gradle b/app/build.gradle
index 52c1d7a90..f91b4a8e6 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -92,5 +92,4 @@ dependencies {
     x86Implementation Deps.geckoview_nightly_x86
     implementation Deps.androidx_legacy
     implementation Deps.android_arch_navigation
-    implementation 'android.arch.navigation:navigation-fragment:1.0.0-alpha09'
 }
diff --git a/app/src/main/java/org/mozilla/fenix/FenixApplication.kt b/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
index dd38cdb3e..c250a563e 100644
--- a/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
+++ b/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix
 
 import android.app.Application
diff --git a/app/src/main/java/org/mozilla/fenix/components/Components.kt b/app/src/main/java/org/mozilla/fenix/components/Components.kt
index a5edfbe35..c8c52576e 100644
--- a/app/src/main/java/org/mozilla/fenix/components/Components.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/Components.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components
 
 import android.content.Context
diff --git a/app/src/main/java/org/mozilla/fenix/components/Search.kt b/app/src/main/java/org/mozilla/fenix/components/Search.kt
index 3d6afaee3..f4d3b7889 100644
--- a/app/src/main/java/org/mozilla/fenix/components/Search.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/Search.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components
 
 import android.content.Context
@@ -5,7 +9,6 @@ import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import mozilla.components.browser.search.SearchEngineManager
 
-
 /**
  * Component group for all search engine integration related functionality.
  */
diff --git a/app/src/main/java/org/mozilla/fenix/components/UseCases.kt b/app/src/main/java/org/mozilla/fenix/components/UseCases.kt
index 49c263d0f..b2267ab50 100644
--- a/app/src/main/java/org/mozilla/fenix/components/UseCases.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/UseCases.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components
 
 import android.content.Context
diff --git a/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt b/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt
index cea12751b..a7445610f 100644
--- a/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.components.toolbar
 
 import android.content.Context
diff --git a/app/src/main/java/org/mozilla/fenix/ext/Context.kt b/app/src/main/java/org/mozilla/fenix/ext/Context.kt
index f1e4a029a..54effd9f2 100644
--- a/app/src/main/java/org/mozilla/fenix/ext/Context.kt
+++ b/app/src/main/java/org/mozilla/fenix/ext/Context.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.ext
 
 import android.content.Context
diff --git a/app/src/main/java/org/mozilla/fenix/ext/Fragment.kt b/app/src/main/java/org/mozilla/fenix/ext/Fragment.kt
index 6ae774e77..10c70358a 100644
--- a/app/src/main/java/org/mozilla/fenix/ext/Fragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/ext/Fragment.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.ext
 
 import androidx.fragment.app.Fragment
diff --git a/build.gradle b/build.gradle
index c829624a5..ec85cb52e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,9 +30,3 @@ allprojects {
 task clean(type: Delete) {
     delete rootProject.buildDir
 }
-
-task showMeCache << {
-    configurations.compile.each { println it }
-}
-
-