diff --git a/_meta/mozilla-mobile-firefox-android.json b/_meta/mozilla-mobile-firefox-android.json
index 9033e3fb90f..7b9e2607b64 100644
--- a/_meta/mozilla-mobile-firefox-android.json
+++ b/_meta/mozilla-mobile-firefox-android.json
@@ -1,6 +1,6 @@
 {
   "name": "mozilla-mobile/firefox-android",
   "revs": {
-    "ac-prep": "684e92cc10ea89ebba2675c6bca7c5ffcfae7803"
+    "ac-prep": "d6980d6a178e725d03a2d110981935eddf8657ae"
   }
 }
\ No newline at end of file
diff --git a/mozilla-mobile/firefox-android/android-components/components/feature/addons/src/main/res/values/strings.xml b/mozilla-mobile/firefox-android/android-components/components/feature/addons/src/main/res/values/strings.xml
index 3f2eb93538f..17e099c84f2 100644
--- a/mozilla-mobile/firefox-android/android-components/components/feature/addons/src/main/res/values/strings.xml
+++ b/mozilla-mobile/firefox-android/android-components/components/feature/addons/src/main/res/values/strings.xml
@@ -178,4 +178,10 @@
     <string name="mozac_feature_addons_updater_dialog_last_attempt">Last attempt:</string>
     <!-- Displayed in the "Status" field for the updater when an add-on has been correctly updated -->
     <string name="mozac_feature_addons_updater_dialog_status">Status:</string>
+    <!-- Text shown in the dialog when add-on installation is completed. %1$s is the add-on name. %2$s is the app name. -->
+    <string name="mozac_feature_addons_installed_dialog_title">%1$s has been added to %2$s</string>
+    <!-- Text shown in the dialog when add-on installation is completed. %1$s is the add-on name. -->
+    <string name="mozac_feature_addons_installed_dialog_description">Open it in the menu</string>
+    <!-- Confirmation button text for the dialog when add-on installation is completed. -->
+    <string name="mozac_feature_addons_installed_dialog_okay_button">Okay, Got It</string>
 </resources>