diff --git a/mozilla-mobile/android-components/components/feature/addons/src/main/res/values-ru/strings.xml b/mozilla-mobile/android-components/components/feature/addons/src/main/res/values-ru/strings.xml
index 3eb6b7dbbfb..6ff5ff2fbd2 100644
--- a/mozilla-mobile/android-components/components/feature/addons/src/main/res/values-ru/strings.xml
+++ b/mozilla-mobile/android-components/components/feature/addons/src/main/res/values-ru/strings.xml
@@ -72,8 +72,10 @@
     <string name="mozac_feature_addons_permissions_devtools_description">Расширение доступа инструментов разработчика к вашим данным в открытых вкладках</string>
     <!-- The version on of add-on. -->
     <string name="mozac_feature_addons_version">Версия</string>
+    <!-- The author of an add-on. -->
+    <string name="mozac_feature_addons_author">Автор</string>
     <!-- The authors of an add-on. -->
-    <string name="mozac_feature_addons_authors">Авторы</string>
+    <string name="mozac_feature_addons_authors" moz:removedIn="120" tools:ignore="UnusedResources">Авторы</string>
     <!-- The last date that the add-on was updated. -->
     <string name="mozac_feature_addons_last_updated">Последнее обновление</string>
     <!-- The developer website (Homepage) of the add-on. -->
@@ -114,10 +116,18 @@
     <string name="mozac_feature_addons_remove">Удалить</string>
     <!-- This is the title of a dialog that asks the users if they to install or not an add-on. %1$s is the add-on name. -->
     <string name="mozac_feature_addons_permissions_dialog_title">Добавить %1$s?</string>
+    <!-- This is the title of a dialog that asks the users to grant optional permissions. %1$s is the add-on name. -->
+    <string name="mozac_feature_addons_optional_permissions_dialog_title">%1$s запрашивает дополнительные разрешения.</string>
     <!-- This is the subtitle of a dialog that asks the users if they want to install or not an add-on, the subtitle lists the permissions that this add-on requires, the permissions will dynamically be listed after the ":". -->
     <string name="mozac_feature_addons_permissions_dialog_subtitle">Оно запрашивает разрешение на:</string>
+    <!-- This is the subtitle of a dialog that asks the users to grant optional permissions, the subtitle lists the permissions that this add-on requests, the permissions will dynamically be listed after the ":". -->
+    <string name="mozac_feature_addons_optional_permissions_dialog_subtitle">Оно хочет разрешение на:</string>
     <!-- This is a button to add (install) an add-on . -->
     <string name="mozac_feature_addons_permissions_dialog_add">Добавить</string>
+    <!-- This is a button to allow the optional permissions requested by an add-on . -->
+    <string name="mozac_feature_addons_permissions_dialog_allow">Разрешить</string>
+    <!-- This is a button to deny the optional permissions requested by an add-on . -->
+    <string name="mozac_feature_addons_permissions_dialog_deny">Отклонить</string>
     <!-- This is a button to cancel the add-on installation . -->
     <string name="mozac_feature_addons_permissions_dialog_cancel">Отмена</string>
     <!-- Accessibility content description to install add-on button. -->