diff --git a/app/src/main/res/values-be/strings.xml b/app/src/main/res/values-be/strings.xml
index 7f44e49b8..fe14259d6 100644
--- a/app/src/main/res/values-be/strings.xml
+++ b/app/src/main/res/values-be/strings.xml
@@ -749,6 +749,8 @@
     <string name="bookmark_deletion_snackbar_message">%1$s выдалена</string>
     <!-- Bookmark snackbar message on deleting multiple bookmarks not including folders-->
     <string name="bookmark_deletion_multiple_snackbar_message_2">Закладкі выдалены</string>
+    <!-- Bookmark snackbar message on deleting multiple bookmarks including folders-->
+    <string name="bookmark_deletion_multiple_snackbar_message_3">Выдаленне абраных папак</string>
     <!-- Bookmark undo button for deletion snackbar action -->
     <string name="bookmark_undo_deletion">АДМЯНІЦЬ</string>
 
@@ -1017,6 +1019,8 @@
 
     <!-- Dialog message to the user asking to delete browsing data. -->
     <string name="delete_browsing_data_prompt_message">Гэта выдаліць усе дадзеныя вашага аглядання.</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 выдаліць выбраныя дадзеныя аглядання.</string>
     <!-- Text for the cancel button for the data deletion dialog -->
     <string name="delete_browsing_data_prompt_cancel">Адмена</string>
     <!-- Text for the allow button for the data deletion dialog -->
diff --git a/app/src/main/res/values-en-rCA/strings.xml b/app/src/main/res/values-en-rCA/strings.xml
index b790bc56d..08fda6e16 100644
--- a/app/src/main/res/values-en-rCA/strings.xml
+++ b/app/src/main/res/values-en-rCA/strings.xml
@@ -343,6 +343,20 @@
     <!-- Preference for notifications -->
     <string name="preferences_notifications">Notifications</string>
 
+    <!-- Add-on Preferences -->
+    <!-- Preference to customize the configured AMO (addons.mozilla.org) collection -->
+    <string name="preferences_customize_amo_collection">Custom Add-on collection</string>
+    <!-- Button caption to confirm the add-on collection configuration -->
+    <string name="customize_addon_collection_ok">OK</string>
+    <!-- Button caption to abort the add-on collection configuration -->
+    <string name="customize_addon_collection_cancel">Cancel</string>
+    <!-- Hint displayed on input field for custom collection name -->
+    <string name="customize_addon_collection_hint">Collection name</string>
+    <!-- Hint displayed on input field for custom collection user ID-->
+    <string name="customize_addon_collection_user_hint">Collection owner (User ID)</string>
+    <!-- Toast shown after confirming the custom add-on collection configuration -->
+    <string name="toast_customize_addon_collection_done">Add-on collection modified. Quitting the application to apply changes…</string>
+
     <!-- Account Preferences -->
     <!-- Preference for triggering sync -->
     <string name="preferences_sync_now">Sync now</string>
@@ -639,6 +653,10 @@
     <!-- Text for the button to clear selected history items. The first parameter
         is a digit showing the number of items you have selected -->
     <string name="history_delete_some">Delete %1$d items</string>
+    <!-- Text for the header that groups the history for today -->
+    <string name="history_today">Today</string>
+    <!-- Text for the header that groups the history for yesterday -->
+    <string name="history_yesterday">Yesterday</string>
     <!-- Text for the header that groups the history for last 24 hours -->
     <string name="history_24_hours">Last 24 hours</string>
     <!-- Text for the header that groups the history the past 7 days -->
diff --git a/app/src/main/res/values-es-rCL/strings.xml b/app/src/main/res/values-es-rCL/strings.xml
index 13e446e29..7dafcda13 100644
--- a/app/src/main/res/values-es-rCL/strings.xml
+++ b/app/src/main/res/values-es-rCL/strings.xml
@@ -343,6 +343,20 @@
     <!-- Preference for notifications -->
     <string name="preferences_notifications">Notificaciones</string>
 
+    <!-- Add-on Preferences -->
+    <!-- Preference to customize the configured AMO (addons.mozilla.org) collection -->
+    <string name="preferences_customize_amo_collection">Colección de complementos personalizada</string>
+    <!-- Button caption to confirm the add-on collection configuration -->
+    <string name="customize_addon_collection_ok">Aceptar</string>
+    <!-- Button caption to abort the add-on collection configuration -->
+    <string name="customize_addon_collection_cancel">Cancelar</string>
+    <!-- Hint displayed on input field for custom collection name -->
+    <string name="customize_addon_collection_hint">Nombre de la colección</string>
+    <!-- Hint displayed on input field for custom collection user ID-->
+    <string name="customize_addon_collection_user_hint">Dueño de la colección (ID de usuario)</string>
+    <!-- Toast shown after confirming the custom add-on collection configuration -->
+    <string name="toast_customize_addon_collection_done">Colección de complementos modificada. Cerrando la aplicación para aplicar los cambios…</string>
+
     <!-- Account Preferences -->
     <!-- Preference for triggering sync -->
     <string name="preferences_sync_now">Sincronizar ahora</string>
@@ -642,6 +656,10 @@
         is a digit showing the number of items you have selected -->
     <string name="history_delete_some">Eliminar %1$d elementos</string>
 
+    <!-- Text for the header that groups the history for today -->
+    <string name="history_today">Hoy</string>
+    <!-- Text for the header that groups the history for yesterday -->
+    <string name="history_yesterday">Ayer</string>
     <!-- Text for the header that groups the history for last 24 hours -->
     <string name="history_24_hours">Últimas 24 horas</string>
     <!-- Text for the header that groups the history the past 7 days -->
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index 800370504..bca65d009 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -356,6 +356,20 @@
     <!-- Preference for notifications -->
     <string name="preferences_notifications">알림</string>
 
+    <!-- Add-on Preferences -->
+    <!-- Preference to customize the configured AMO (addons.mozilla.org) collection -->
+    <string name="preferences_customize_amo_collection">사용자 지정 부가 기능 모음집</string>
+    <!-- Button caption to confirm the add-on collection configuration -->
+    <string name="customize_addon_collection_ok">확인</string>
+    <!-- Button caption to abort the add-on collection configuration -->
+    <string name="customize_addon_collection_cancel">취소</string>
+    <!-- Hint displayed on input field for custom collection name -->
+    <string name="customize_addon_collection_hint">모음집 이름</string>
+    <!-- Hint displayed on input field for custom collection user ID-->
+    <string name="customize_addon_collection_user_hint">모음집 소유자 (사용자 ID)</string>
+    <!-- Toast shown after confirming the custom add-on collection configuration -->
+    <string name="toast_customize_addon_collection_done">부가 기능 모음집이 변경되었습니다. 변경 사항을 적용하기 위해 응용 프로그램을 종료하는 중…</string>
+
     <!-- Account Preferences -->
     <!-- Preference for triggering sync -->
     <string name="preferences_sync_now">지금 동기화</string>
@@ -660,6 +674,10 @@
     <!-- Text for the button to clear selected history items. The first parameter
         is a digit showing the number of items you have selected -->
     <string name="history_delete_some">%1$d개 항목 삭제</string>
+    <!-- Text for the header that groups the history for today -->
+    <string name="history_today">오늘</string>
+    <!-- Text for the header that groups the history for yesterday -->
+    <string name="history_yesterday">어제</string>
     <!-- Text for the header that groups the history for last 24 hours -->
     <string name="history_24_hours">지난 24 시간</string>
     <!-- Text for the header that groups the history the past 7 days -->
diff --git a/app/src/main/res/values-nb-rNO/strings.xml b/app/src/main/res/values-nb-rNO/strings.xml
index 2f3b0562e..a208c1a2c 100644
--- a/app/src/main/res/values-nb-rNO/strings.xml
+++ b/app/src/main/res/values-nb-rNO/strings.xml
@@ -347,6 +347,21 @@
     <!-- Preference for notifications -->
     <string name="preferences_notifications">Varslinger</string>
 
+    <!-- Add-on Preferences -->
+    <!-- Preference to customize the configured AMO (addons.mozilla.org) collection -->
+    <string name="preferences_customize_amo_collection">Tilpasset tilleggssamling</string>
+    <!-- Button caption to confirm the add-on collection configuration -->
+    <string name="customize_addon_collection_ok">OK</string>
+    <!-- Button caption to abort the add-on collection configuration -->
+    <string name="customize_addon_collection_cancel">Avbryt</string>
+    <!-- Hint displayed on input field for custom collection name -->
+    <string name="customize_addon_collection_hint">Samlingsnavn</string>
+    <!-- Hint displayed on input field for custom collection user ID-->
+    <string name="customize_addon_collection_user_hint">Samlingseier (bruker-ID)</string>
+
+    <!-- Toast shown after confirming the custom add-on collection configuration -->
+    <string name="toast_customize_addon_collection_done">Tilleggssamling endret. Avslutter applikasjonen for å bruke endringer…</string>
+
     <!-- Account Preferences -->
     <!-- Preference for triggering sync -->
     <string name="preferences_sync_now">Synkroniser nå</string>
@@ -649,6 +664,10 @@
     <!-- Text for the button to clear selected history items. The first parameter
         is a digit showing the number of items you have selected -->
     <string name="history_delete_some">Slett %1$d elementer</string>
+    <!-- Text for the header that groups the history for today -->
+    <string name="history_today">I dag</string>
+    <!-- Text for the header that groups the history for yesterday -->
+    <string name="history_yesterday">I går</string>
     <!-- Text for the header that groups the history for last 24 hours -->
     <string name="history_24_hours">Siste 24 timer</string>
     <!-- Text for the header that groups the history the past 7 days -->
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index e3ee6b96f..92fae823e 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -356,6 +356,20 @@
     <!-- Preference for notifications -->
     <string name="preferences_notifications">Уведомления</string>
 
+    <!-- Add-on Preferences -->
+    <!-- Preference to customize the configured AMO (addons.mozilla.org) collection -->
+    <string name="preferences_customize_amo_collection">Собственная коллекция дополнений</string>
+    <!-- Button caption to confirm the add-on collection configuration -->
+    <string name="customize_addon_collection_ok">OK</string>
+    <!-- Button caption to abort the add-on collection configuration -->
+    <string name="customize_addon_collection_cancel">Отмена</string>
+    <!-- Hint displayed on input field for custom collection name -->
+    <string name="customize_addon_collection_hint">Имя коллекции</string>
+    <!-- Hint displayed on input field for custom collection user ID-->
+    <string name="customize_addon_collection_user_hint">Владелец коллекции (ID пользователя)</string>
+    <!-- Toast shown after confirming the custom add-on collection configuration -->
+    <string name="toast_customize_addon_collection_done">Коллекция дополнений была изменена. Закрываем приложение, чтобы применить изменения…</string>
+
     <!-- Account Preferences -->
     <!-- Preference for triggering sync -->
     <string name="preferences_sync_now">Синхронизировать</string>
@@ -657,6 +671,10 @@
     <!-- Text for the button to clear selected history items. The first parameter
         is a digit showing the number of items you have selected -->
     <string name="history_delete_some">Удалить %1$d элемент(а)</string>
+    <!-- Text for the header that groups the history for today -->
+    <string name="history_today">Сегодня</string>
+    <!-- Text for the header that groups the history for yesterday -->
+    <string name="history_yesterday">Вчера</string>
     <!-- Text for the header that groups the history for last 24 hours -->
     <string name="history_24_hours">Последние 24 часа</string>
     <!-- Text for the header that groups the history the past 7 days -->
diff --git a/app/src/main/res/values-tg/strings.xml b/app/src/main/res/values-tg/strings.xml
index c1d7a18b7..0867df2c2 100644
--- a/app/src/main/res/values-tg/strings.xml
+++ b/app/src/main/res/values-tg/strings.xml
@@ -1035,6 +1035,10 @@
     <string name="onboarding_tracking_protection_strict_button">Ҷиддӣ (тавсия дода мешавад)</string>
     <!-- text for tracking protection radio button option for strict level of blocking -->
     <string name="onboarding_tracking_protection_strict_option">Ҷиддӣ</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 -->
+    <string name="onboarding_toolbar_position_header">Интихоб кунед</string>
     <!-- text for the private browsing onboarding card header -->
     <string name="onboarding_private_browsing_header">Реҷаи тамошои махфӣ</string>
     <!-- text for the private browsing onboarding card description
@@ -1074,6 +1078,8 @@
     <string name="sync_sent_tab_error_snackbar">Ирсол ғайриимкон аст</string>
     <!-- Text shown in snackbar for the "retry" action that the user has after sharing tabs failed -->
     <string name="sync_sent_tab_error_snackbar_action">АЗ НАВ КӮШИШ КАРДАН</string>
+    <!-- Instructions on how to access pairing -->
+    <string name="sign_in_instructions"><![CDATA[Дар компютери худ Firefox-ро кушоед ва ба <b>https://firefox.com/pair</b> гузаред]]></string>
     <!-- Text shown for settings option for sign with pairing -->
     <string name="sign_in_with_camera">Ворид шудан ба воситаи камера</string>
     <!-- Text shown for settings option for sign with email -->
@@ -1255,6 +1261,8 @@
     <string name="saved_login_reveal_password">Нишон додани ниҳонвожа</string>
     <!-- Content Description (for screenreaders etc) read for the button to hide a password in logins -->
     <string name="saved_login_hide_password">Пинҳон кардани ниҳонвожа</string>
+    <!-- Title of warning dialog if users have no device authentication set up -->
+    <string name="logins_warning_dialog_title">Воридшавиҳо ва ниҳонвожаҳои худро муҳофизат намоед</string>
     <!-- Negative button to ignore warning dialog if users have no device authentication set up -->
     <string name="logins_warning_dialog_later">Дертар</string>
     <!-- Positive button to send users to set up a pin of warning dialog if users have no device authentication set up -->
@@ -1269,6 +1277,9 @@
     <!-- Saved logins sorting strategy menu item -by last used- (if selected, it will sort saved logins by last used) -->
     <string name="saved_logins_sort_strategy_last_used">Истифодашудаи охирин</string>
 
+    <!-- Content description (not visible, for screen readers etc.): Sort saved logins dropdown menu chevron icon -->
+    <string name="saved_logins_menu_dropdown_chevron_icon_content_description">Мураттаб кардани менюи воридшавиҳо</string>
+
     <!-- Title of the Add search engine screen -->
     <string name="search_engine_add_custom_search_engine_title">Илова кардани низоми ҷустуҷӯӣ</string>
     <!-- Title of the Edit search engine screen -->
@@ -1288,11 +1299,19 @@
     <string name="search_add_custom_engine_name_hint">Ном</string>
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Сатри ҷустуҷӯ барои истифода</string>
+    <!-- Description text for the Search String TextField. The %s is part of the string -->
+    <string name="search_add_custom_engine_search_string_example">Сатри дархостро бо “%s” иваз намоед. Масалан:\nhttps://www.google.com/search?q=%s</string>
     <!-- Text for the button to learn more about adding a custom search engine -->
     <string name="search_add_custom_engine_learn_more_label">Маълумоти бештар</string>
+    <!-- Accessibility description for the form in which details about the custom search engine are entered -->
+    <string name="search_add_custom_engine_form_description">Тафсилот дар бораи низоми ҷустуҷӯии фармоишӣ</string>
     <!-- Accessibility description for the 'Learn more' link -->
     <string name="search_add_custom_engine_learn_more_description">Пайванди «Маълумоти бештар»</string>
 
+    <!-- Text shown when a user leaves the name field empty -->
+    <string name="search_add_custom_engine_error_empty_name">Номи низоми ҷустуҷӯиро ворид намоед</string>
+    <!-- Text shown when a user tries to add a search engine that already exists -->
+    <string name="search_add_custom_engine_error_existing_name">Низоми ҷустуҷӯӣ бо номи “%s” аллакай вуҷуд дорад.</string>
     <!-- Text shown when a user leaves the search string field empty -->
     <string name="search_add_custom_engine_error_empty_search_string">Сатри ҷустуҷӯро ворид кунед</string>
     <!-- Text shown when we aren't able to validate the custom search query. The first parameter is the url of the custom search engine -->
@@ -1353,6 +1372,12 @@
     <string name="dialog_delete_positive">Нест кардан</string>
     <!--  The saved login options menu description. -->
     <string name="login_options_menu">Имконоти воридшавӣ</string>
+    <!--  The editable text field for a login's web address. -->
+    <string name="saved_login_hostname_description">Майдони матни таҳриршаванда барои нишонии сомонаи воридшавӣ.</string>
+    <!--  The editable text field for a login's username. -->
+    <string name="saved_login_username_description">Майдони матни таҳриршаванда барои номи корбарии воридшавӣ.</string>
+    <!--  The editable text field for a login's password. -->
+    <string name="saved_login_password_description">Майдони матни таҳриршаванда барои ниҳонвожаи воридшавӣ.</string>
     <!--  The button description to save changes to an edited login. -->
     <string name="save_changes_to_login">Нигоҳ доштани тағйирот барои воридшавӣ</string>
     <!--  The button description to discard changes to an edited login. -->
@@ -1378,6 +1403,10 @@
     <string name="synced_tabs_reauth">Лутфан, санҷиши ҳаққониятро аз нав такрор кунед</string>
     <!-- Text displayed when user has disabled tab syncing in Firefox Sync Account -->
     <string name="synced_tabs_enable_tab_syncing">Лутфан ҳамоҳангсозии варақаҳоро фаъол кунед.</string>
+    <!-- Text displayed when user has no tabs that have been synced -->
+    <string name="synced_tabs_no_tabs">Шумо дар дастгоҳҳои дигари худ дар Firefox ягон варақаи кушодашуда надоред.</string>
+    <!-- Text displayed in the synced tabs screen when a user is not signed in to Firefox Sync describing Synced Tabs -->
+    <string name="synced_tabs_sign_in_message">Дидани рӯйхати варақаҳо аз дастгоҳҳои дигар.</string>
     <!-- Text displayed on a button in the synced tabs screen to link users to sign in when a user is not signed in to Firefox Sync -->
     <string name="synced_tabs_sign_in_button">Барои ҳамоҳангсозӣ ворид шавед</string>
     <!-- The text displayed when a synced device has no tabs to show in the list of Synced Tabs. -->