diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index cc0627e35..688b0e38e 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -348,6 +348,12 @@
     -->
     <string name="developer_options_debug_logging">Aktiver debug-logging</string>
 
+    <!-- This string labels an On/Off switch in the developer options dialog and is used to toggle
+     UI render mode. If enables it uses hardware acceleration which should be faster but it may be more unstable.
+     If disabled it uses software rendering which is stable but not as performant as hardware acceleration
+-->
+    <string name="hardware_acceleration_switch">Aktivér UI-hardware-acceleration</string>
+
     <!-- The string labels an On/Off switch in the developer options dialog and is used to toggle enabling Servo. -->
     <string name="developer_options_servo">Aktiver Servo</string>
 
@@ -848,6 +854,24 @@
     <!-- This string is displayed is the "Sync" button in the history panel when the sync is in progress. -->
     <string name="fxa_syncing">Synkroniserer…</string>
 
+    <!-- This string is displayed in the title of the FxA sign out dialog displayed when the user clicks on the Sign out button. -->
+    <string name="fxa_signout_confirmation_title">Vil du logge ud fra din Firefox-konto?</string>
+
+    <!-- This string is displayed in the body of the FxA sign out dialog displayed when the user clicks on the Sign out button. -->
+    <string name="fxa_signout_confirmation_body">Når du logger ud, kan du ikke sende eller modtage faneblade fra andre enheder. Dine bogmærker og din historik vil heller ikke blive synkroniseret længere.</string>
+
+    <!-- This string is displayed in the checkbox text of the FxA sign out dialog displayed when the user clicks on the Sign out button.
+         When checked the history and Bookmarks will be deleted from gthe device after signing in. -->
+    <string name="fxa_signout_confirmation_checkbox">Ryd historik og bogmærker fra denne enhed</string>
+
+    <!-- This string is displayed in the cancel button of the FxA sign out dialog displayed when the user clicks on the Sign out button.
+         If clicked the user will be signed out from their FxA account and the dialog will be dismissed. -->
+    <string name="fxa_signout_confirmation_signout">Log ud</string>
+
+    <!-- This string is displayed in the accept button of the FxA sign out dialog displayed when the user clicks on the Sign out button.
+         If clicked the user will not be signed out from the FxA account and the dialog will be dismissed. -->
+    <string name="fxa_signout_confirmation_cancel">Fortryd</string>
+
     <!-- This string is displayed is the "Cancel" button from the clear history dialog.
          When pressed the dialog is closed. -->
     <string name="history_clear_cancel">Annuller</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 164d9fea4..13de46852 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -863,7 +863,7 @@
 
     <!-- This string is displayed in the checkbox text of the FxA sign out dialog displayed when the user clicks on the Sign out button.
          When checked the history and Bookmarks will be deleted from gthe device after signing in. -->
-    <string name="fxa_signout_confirmation_checkbox">Удалить историю и закладки на этом устройстве</string>
+    <string name="fxa_signout_confirmation_checkbox">Удалить историю и закладки с этого устройства</string>
 
     <!-- This string is displayed in the cancel button of the FxA sign out dialog displayed when the user clicks on the Sign out button.
          If clicked the user will be signed out from their FxA account and the dialog will be dismissed. -->