diff --git a/app/src/main/res/values-ar/strings.xml b/app/src/main/res/values-ar/strings.xml
index 0d4a6b2d16..76e83b1a16 100644
--- a/app/src/main/res/values-ar/strings.xml
+++ b/app/src/main/res/values-ar/strings.xml
@@ -4,6 +4,7 @@
     <string name="app_name_private_5">متصفّح %s خاص</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_4">%s (خاص)</string>
+
     <!-- Home Fragment -->
     <!-- Content description (not visible, for screen readers etc.): "Three dot" menu button. -->
     <string name="content_description_menu">خيارات أكثر</string>
@@ -50,6 +51,16 @@
     <!-- Content description on checkmark while tab is selected in multiselect mode in tab tray -->
     <string name="tab_tray_multiselect_selected_content_description">محدد</string>
 
+    <!-- Home - Recently saved bookmarks -->
+    <!-- Title for the home screen section with recently saved bookmarks. -->
+    <string name="recently_saved_bookmarks">المحفوظة حديثًا</string>
+    <!-- Content description for the recently saved bookmarks section on the home screen. -->
+    <string name="recently_saved_bookmarks_content_description">العلامات المحفوظة حديثًا</string>
+    <!-- Title for the button which navigates the user to show all of their saved bookmarks. -->
+    <string name="recently_saved_show_all">أظهر الكل</string>
+    <!-- Content description for the button which navigates the user to show all of their saved bookmarks. -->
+    <string name="recently_saved_show_all_content_description">أظهر زر كل العلامات المحفوظة</string>
+
     <!-- About content. The first parameter is the name of the application. (For example: Fenix) -->
     <string name="about_content">‏%1$s من Mozilla.</string>
 
@@ -94,14 +105,6 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">أهمِل</string>
 
-    <!-- Text for the banner message to tell users about our grid view feature. -->
-    <string name="tab_tray_grid_view_banner_message">غيّر تخطيط الألسنة المفتوحة. انتقل إلى الإعدادات واختر ”شبكة“ من ”منظور الألسنة“.</string>
-    <!-- Text for the positive action button to go to Settings for auto close tabs. -->
-    <string name="tab_tray_grid_view_banner_positive_button_text">انتقل إلى الإعدادات</string>
-
-    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
-    <string name="tab_tray_grid_view_banner_negative_button_text">تجاهَل</string>
-
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">لسان جديد</string>
@@ -111,6 +114,9 @@
     <!-- Heading for the Top Sites block -->
     <string name="home_screen_top_sites_heading">المواقع الأكثر زيارة</string>
 
+    <!-- Button text for showing all the tabs in the tabs tray -->
+    <string name="recent_tabs_show_all">أظهر الكل</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">الألسنة المفتوحة</string>
@@ -185,6 +191,10 @@
     <!-- Browser menu label for editing a bookmark -->
     <string name="browser_menu_edit">حرّر</string>
 
+    <!-- Browser Toolbar -->
+    <!-- Content description for the Home screen button on the browser toolbar -->
+    <string name="browser_toolbar_home">الشاشة الرئيسية</string>
+
     <!-- Error message to show when the user tries to access a scheme not
         handled by the app (Ex: blob, tel etc) -->
     <string name="unknown_scheme_error_message">تعذّر الاتصال، لم أتعرّف على مخطّط المسار.</string>
@@ -415,6 +425,11 @@
         and the third is the device model. -->
     <string name="default_device_name_2">‏%1$s على %2$s %3$s</string>
 
+    <!-- Preference for syncing credit cards -->
+    <string name="preferences_sync_credit_cards">بطاقات الائتمان</string>
+    <!-- Preference for syncing addresses -->
+    <string name="preferences_sync_address">العناوين</string>
+
     <!-- Send Tab -->
     <!-- Name of the "receive tabs" notification channel. Displayed in the "App notifications" system settings for the app -->
     <string name="fxa_received_tab_channel_name">الألسنة المستلمة</string>
@@ -445,9 +460,6 @@
     <!-- Text displayed when there are no exceptions, with learn more link that brings users to a tracking protection SUMO page -->
     <string name="exceptions_empty_message_learn_more_link">اطّلع على المزيد</string>
 
-    <!-- Description in Quick Settings that tells user tracking protection is off globally for all sites, and links to Settings to turn it on -->
-    <string name="preferences_tracking_protection_turned_off_globally">مُعطّلة على مستوى المتصفّح، افتح الإعدادات لتفعيلها.</string>
-
     <!-- Preference switch for Telemetry -->
     <string name="preferences_telemetry">تليمتري</string>
 
@@ -546,8 +558,6 @@
     <string name="library_new_tab">لسان جديد</string>
     <!-- Option in Library to find text in page -->
     <string name="library_find_in_page">ابحث في الصفحة</string>
-    <!-- Option in Library to open Synced Tabs page -->
-    <string name="library_synced_tabs">الألسنة المُزامنة</string>
     <!-- Option in Library to open Reading List -->
     <string name="library_reading_list">قائمة القراءة</string>
     <!-- Menu Item Label for Search in Library -->
@@ -592,6 +602,15 @@
     <!-- Option for auto closing tabs that will auto close tabs after one month -->
     <string name="close_tabs_after_one_month">بعد شهر واحد</string>
 
+    <!-- Start on Home -->
+    <!-- Title of a preference that allows a user to indicate after a specified amount of time when the app should start on the home screen -->
+    <string name="preferences_start_on_home">ابدأ من الرئيسية</string>
+    <!-- Option for starting on the home screen after after four hours or inactivity -->
+    <string name="start_on_home_after_four_hours">بعد أربع ساعات</string>
+    <!-- Option for always starting on the home screen -->
+    <string name="start_on_home_always">دائمًا</string>
+    <!-- Option for never starting on the home screen -->
+    <string name="start_on_home_never">أبدًا</string>
     <!-- Summary for tabs preference when auto closing tabs setting is set to manual close-->
     <string name="close_tabs_manually_summary">أغلِق يدويًا</string>
 
@@ -798,8 +817,6 @@
     <string name="bookmark_delete_folder_snackbar">حُذف %1$s</string>
     <!-- Screen title for adding a bookmarks folder -->
     <string name="bookmark_add_folder">أضِف مجلدًا</string>
-    <!-- deprecated: Snackbar title shown after a bookmark has been created. -->
-    <string name="bookmark_created_snackbar">أُنشئت العلامة.</string>
 
     <!-- Snackbar title shown after a bookmark has been created. -->
     <string name="bookmark_saved_snackbar">حُفظت العلامة.</string>
@@ -1026,6 +1043,8 @@
     <string name="notification_pbm_action_delete_and_open">احذف وافتح</string>
     <!-- Name of the "Powered by Fenix" notification channel. Displayed in the "App notifications" system settings for the app -->
     <string name="notification_powered_by_channel_name">تدعمه</string>
+
+    <!-- Snackbar -->
     <!-- Text shown in snackbar when user deletes a collection -->
     <string name="snackbar_collection_deleted">حُذفت التجميعة</string>
     <!-- Text shown in snackbar when user renames a collection -->
@@ -1453,10 +1472,8 @@
     <string name="preferences_passwords_autofill">الملء التلقائي</string>
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">زامِن جلسات الولوج</string>
-    <!-- Syncing saved logins in Fenix is on -->
-    <string name="preferences_passwords_sync_logins_on">مفعّلة</string>
-    <!-- Syncing saved logins in Fenix is off -->
-    <string name="preferences_passwords_sync_logins_off">معطّلة</string>
+    <!-- Preference for syncing saved logins in Fenix, when not signed in-->
+    <string name="preferences_passwords_sync_logins_across_devices">زامِن جلسات الولوج بين الأجهزة</string>
     <!-- Syncing saved logins in Fenix needs reconnect to sync -->
     <string name="preferences_passwords_sync_logins_reconnect">أعِد الاتصال</string>
     <!-- Syncing saved logins in Fenix needs login -->
@@ -1557,6 +1574,8 @@
     <string name="preferences_credit_cards_save_and_autofill_cards_summary">البيانات معماة</string>
     <!-- Preference option for syncing credit cards across devices. This is displayed when the user is not signed into sync -->
     <string name="preferences_credit_cards_sync_cards_across_devices">زامِن البطاقات بين الأجهزة</string>
+    <!-- Preference option for syncing credit cards across devices. This is displayed when the user is signed into sync -->
+    <string name="preferences_credit_cards_sync_cards">زامِن البطاقات</string>
     <!-- Preference option for adding a credit card -->
     <string name="preferences_credit_cards_add_credit_card">أضِف بطاقة ائتمان</string>
 
@@ -1570,6 +1589,10 @@
     <string name="credit_cards_card_number">رقم البطاقة</string>
     <!-- The header for the expiration date of a credit card -->
     <string name="credit_cards_expiration_date">تاريخ الانتهاء</string>
+    <!-- The label for the expiration date month of a credit card to be used by a11y services-->
+    <string name="credit_cards_expiration_date_month">شهر تاريخ الانتهاء</string>
+    <!-- The label for the expiration date year of a credit card to be used by a11y services-->
+    <string name="credit_cards_expiration_date_year">سنة تاريخ الانتهاء</string>
     <!-- The header for the name on the credit card -->
     <string name="credit_cards_name_on_card">الاسم على البطاقة</string>
     <!-- The header for the nickname for a credit card -->
@@ -1588,6 +1611,23 @@
     <!-- Title of the "Saved cards" screen -->
     <string name="credit_cards_saved_cards">البطاقات المحفوظة</string>
 
+    <!-- Error message for credit card number validation -->
+    <string name="credit_cards_number_validation_error_message">رجاءً أدخِل رقم بطاقة ائتمان صالح</string>
+    <!-- Error message for credit card name on card validation -->
+    <string name="credit_cards_name_on_card_validation_error_message">رجاءً املأ هذا الحقل</string>
+    <!-- Message displayed in biometric prompt displayed for authentication before allowing users to view their saved credit cards -->
+    <string name="credit_cards_biometric_prompt_message">ألغِ القفل لعرض بطاقاتك المحفوظة</string>
+    <!-- Title of warning dialog if users have no device authentication set up -->
+    <string name="credit_cards_warning_dialog_title">أمّن بطاقات ائتمانك</string>
+    <!-- Positive button to send users to set up a pin of warning dialog if users have no device authentication set up -->
+    <string name="credit_cards_warning_dialog_set_up_now">اضبط ذلك الآن</string>
+    <!-- Negative button to ignore warning dialog if users have no device authentication set up -->
+    <string name="credit_cards_warning_dialog_later">لاحقًا</string>
+    <!-- Title of PIN verification dialog to direct users to re-enter their device credentials to access their credit cards -->
+    <string name="credit_cards_biometric_prompt_message_pin">ألغِ قفل جهازك</string>
+    <!-- Message displayed in biometric prompt for authentication, before allowing users to use their stored credit card information -->
+    <string name="credit_cards_biometric_prompt_unlock_message">ألغِ القفل لتستعمل معلومات بطاقة الائتمان المخزّنة</string>
+
     <!-- Title of the Add search engine screen -->
     <string name="search_engine_add_custom_search_engine_title">أضِف محرك بحث</string>
     <!-- Title of the Edit search engine screen -->
@@ -1608,7 +1648,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">نص البحث المستخدم</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">استبدِل الاستعلام بِ‍ ”%s“. مثال:\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">استبدِل الاستعلام بِ‍ ”%s“. مثال:\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">اطّلع على المزيد</string>
 
@@ -1753,19 +1793,10 @@
     <!-- Content description for close button in collection placeholder. -->
     <string name="remove_home_collection_placeholder_content_description">أزِل</string>
 
-    <!-- Deprecated: text for the firefox account onboarding card header
-    The first parameter is the name of the app (e.g. Firefox Preview) -->
-    <string name="onboarding_firefox_account_header">استغلّ %s إلى أقصى حد.</string>
-
     <!-- Content description radio buttons with a link to more information -->
     <string name="radio_preference_info_content_description">انقر لتفاصيل أكثر</string>
 
-    <!-- Deprecated: No Open Tabs Message Header -->
-    <string name="no_collections_header1">اجمع ما يهمّك</string>
-    <!-- Deprecated: Label to describe what collections are to a new user without any collections -->
-    <string name="no_collections_description1">جمّع عمليات البحث والمواقع والألسنة المتشابهة لتصل إليها بسرعة لاحقًا.</string>
-    <!-- Deprecated: text for the firefox account onboarding card header when we detect you're already signed in to -->
-    <string name="onboarding_firefox_account_auto_signin_header_2">ولجت ببريد %s على متصفّح Firefox آخر على هذا المحمول. أتريد الولوج بنفس الحساب؟</string>
-    <!-- Deprecated: Describes the add to homescreen functionality -->
-    <string name="add_to_homescreen_description">يمكنك إضافة هذا الموقع إلى شاشة البداية لتصل إليه بسرعة وتتصفحه كأي تطبيق آخر.</string>
+    <!-- Content description for privacy content close button -->
+    <string name="privacy_content_close_button_content_description">أغلِق</string>
+
 </resources>
diff --git a/app/src/main/res/values-dsb/strings.xml b/app/src/main/res/values-dsb/strings.xml
index f549078c7a..8050a13c6c 100644
--- a/app/src/main/res/values-dsb/strings.xml
+++ b/app/src/main/res/values-dsb/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_5">Priwatny %s</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -119,6 +119,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Wšykne pokazaś</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Zajźone wuslěźenja</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Wócynjone rejtariki</string>
@@ -621,6 +626,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Pó jadnom mjasecu zacyniś</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Wótwónoźeś</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Aktiwny</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox móžo wótergi studije instalěrowaś a pśewjasć.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Dalšne informacije</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Wócynjone rejtariki</string>
@@ -648,6 +663,8 @@
     <string name="tab_tray_menu_item_share">Wšykne rejtariki źěliś</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Rowno zacynjone rejtariki</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">Njedawno zacynjone</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Kontowe nastajenja</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -944,6 +961,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">Wušaltowany</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">Zmóžnjony</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Znjemóžnjony</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Zběrki</string>
@@ -1271,7 +1293,7 @@
     <string name="onboarding_privacy_notice_read_button">Cytajśo našu powěźeńku priwatnosći</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Zacyniś</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Zacyniś</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Pśeglědowanje zachopiś</string>
@@ -1373,6 +1395,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Kryptokopaki</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Palcowe wótśišće</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Drobnostki</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Zablokěrowane</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Dowólone</string>
@@ -1400,7 +1425,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Zaźujo zacytanjeju wabjenja, wideo a drugego wopśimjeśa, kótarež slědowański kod wopśimuju. Móžo někotare funkcije websedłow kazyś.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Kuždy raz, gaž šćit jo wioletny, jo %s pśeslědowaki na sedle zablokěrował. Pótusniśo za dalšne informacije.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Kuždy raz, gaž šćit jo wioletny, jo %s pśeslědowaki na sedle zablokěrował. Pótusniśo za dalšne informacije.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Šćit jo zmóžnjony za toś to sedło</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1481,7 +1506,16 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Nigda njeskładowaś</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Awtomatiski wupołniś</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Awtomatiski wupołniś</string>
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">W %1$s awtomatiski wupołniś</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Wužywaŕske mjenja a gronidła na websedłach zasajźiś a składowaś, mjaztym až %1$s wužywaśo.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">W drugich nałoženjach awtomatiski wupołniś</string>
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Wužywaŕske mjenja a gronidła w drugich nałoženjach na wašom rěźe zasajźiś.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Pśizjawjenja synchronizěrowaś</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1665,7 +1699,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Pytański wuraz, kótaryž ma se wužywaś</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">Napšašowanje z „%s“ wuměniś. Pśikład: \nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">Napšašowanje z „%s“ wuměniś. Pśikład: \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">Dalšne informacije</string>
 
@@ -1804,6 +1838,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Pśetergnuś</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Inaktiwne rejtariki</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Rejtariki su how za %s k dispoziciji. Pó toś tom casu se rejtariki awtomatiski zacyniju.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 dnjow</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 tyźeń</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Nastajśo wótkaze z websedłow, mejlkow a powěsćow, aby se awtomatiski we Firefox wócynili.</string>
 
diff --git a/app/src/main/res/values-es-rCL/strings.xml b/app/src/main/res/values-es-rCL/strings.xml
index e8ae28a5c5..994669feb6 100644
--- a/app/src/main/res/values-es-rCL/strings.xml
+++ b/app/src/main/res/values-es-rCL/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_5">%s en modo privado</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -118,6 +118,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Mostrar todo</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Exploraciones pasadas</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Pestañas abiertas</string>
@@ -620,6 +625,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Cerrar después de un mes</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Eliminar</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Activo</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox podría instalar y realizar experimentos de vez en cuando.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Aprender más</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Pestañas abiertas</string>
@@ -647,6 +662,8 @@
     <string name="tab_tray_menu_item_share">Compartir todas las pestañas</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Pestañas cerradas recientemente</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">Cerrados recientemente</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Ajustes de la cuenta</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -941,6 +958,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">No</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">Activado</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Desactivado</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Colecciones</string>
@@ -1268,7 +1290,7 @@
     <string name="onboarding_privacy_notice_read_button">Lee nuestro aviso de privacidad</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Cerrar</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Cerrar</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Empezar a navegar</string>
@@ -1371,6 +1393,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Criptomineros</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Creadores de huellas (Fingerprinters)</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Detalles</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Bloqueado</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Permitido</string>
@@ -1395,7 +1420,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Detiene la carga de publicidad, videos y otros contenidos que contienen códigos de seguimiento. Puede afectar la funcionalidad de algunos sitios web.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Cada vez que el escudo está de color morado, %s ha bloqueado rastreadores en un sitio. Toca para más información.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Cada vez que el escudo está de color morado, %s ha bloqueado rastreadores en un sitio. Toca para más información.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Las protecciones están activadas para este sitio</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1477,7 +1502,16 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Nunca guardar</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Autollenado</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Autollenado</string>
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">Autocompletar en %1$s</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Completa y guarda nombres de usuario y contraseñas en sitios web mientras usas %1$s.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">Autocompletar en otras apps</string>
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Completa los nombres de usuario y contraseñas en otras aplicaciones de tu dispositivo.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Sincronizar credenciales</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1660,7 +1694,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Cadena de búsqueda a usar</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">Reemplazar la consulta con “%s”. Ejemplo:\n https://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">Reemplazar la consulta con “%s”. Ejemplo:\n https://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">Aprender más</string>
 
@@ -1798,6 +1832,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Cancelar</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Pestañas inactivas</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Las pestañas están disponibles aquí por %s. Después de ese tiempo, las pestañas se cerrarán automáticamente.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 días</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 semana</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Configura enlaces de sitios web, correos electrónicos y mensajes para que se abran automáticamente en Firefox.</string>
 
diff --git a/app/src/main/res/values-hsb/strings.xml b/app/src/main/res/values-hsb/strings.xml
index 72d9d5d6b9..2cb5f4b001 100644
--- a/app/src/main/res/values-hsb/strings.xml
+++ b/app/src/main/res/values-hsb/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_5">Priwatny %s</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -120,6 +120,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Wšě pokazać</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Zańdźene wuslědźenja</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Wočinjene rajtarki</string>
@@ -625,6 +630,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Po jednym měsacu začinić</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Wotstronić</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Aktiwny</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox móže hdys a hdys studije instalować a přewjesć.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Dalše informacije</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Wočinjene rajtarki</string>
@@ -652,6 +667,8 @@
     <string name="tab_tray_menu_item_share">Wšě rajtarki dźělić</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Runje začinjene rajtarki</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed"></string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Kontowe nastajenja</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -947,6 +964,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">Wupinjeny</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">Zmóžnjeny</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Znjemóžnjeny</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Zběrki</string>
@@ -1275,7 +1297,7 @@
     <string name="onboarding_privacy_notice_read_button">Čitajće naš zdźělenku priwatnosće</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Začinić</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Začinić</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Přehladowanje započeć</string>
@@ -1378,6 +1400,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Kryptokopaki</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Porstowe wotćišće</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Podrobnosće</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Zablokowany</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Dowoleny</string>
@@ -1402,7 +1427,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Zadźěwa začitanju wabjenja, widejow a druheho wobsaha, kotrež slědowanski kod wobsahuja. Móže někotrym funkcijam websydłow wadźić.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Kóždy raz, hdyž tarč je wioletna, je %s přesćěhowaki na sydle zablokował. Podótkńće za dalše informacije.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Kóždy raz, hdyž tarč je wioletna, je %s přesćěhowaki na sydle zablokował. Podótkńće za dalše informacije.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Škit je zmóžnjeny za tute sydło</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1484,7 +1509,17 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Ženje njeskładować</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Awtomatisce wupjelnić</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Awtomatisce wupjelnić</string>
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">W %1$s awtomatisce wupjelnić</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Wužiwarske mjena a hesła na websydłach zasadźić a składować, mjeztym zo %1$s wužiwaće.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">W druhich nałoženjach awtomatisce wupjelnić</string>
+
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Wužiwarske mjena a hesła w druhich nałoženjach na wašim graće zasadźić.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Přizjewjenja synchronizować</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1807,6 +1842,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Přetorhnyć</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Inaktiwne rajtarki</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Rajtarki su tu za %s k dispoziciji. Po tutym času so rajtarki awtomatisce začinja.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 dnjow</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 tydźeń</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Nastajće wotkazy z websydłow, mejlkow a powěsćow, zo bychu so awtomatisce we Firefox wočinili.</string>
 
diff --git a/app/src/main/res/values-ia/strings.xml b/app/src/main/res/values-ia/strings.xml
index 31309f848e..29bb142ab7 100644
--- a/app/src/main/res/values-ia/strings.xml
+++ b/app/src/main/res/values-ia/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
 
 
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -119,6 +119,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Monstrar toto</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Pasatew explorationes</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Schedas aperte</string>
@@ -644,6 +649,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Clauder depost un mense</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Remover</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Active</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox pote installar e conducer studios de tempore in tempore.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Saper plus</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Schedas aperte</string>
@@ -673,6 +688,8 @@
     <string name="tab_tray_menu_item_share">Compartir tote le schedas</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Schedas claudite recentemente</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">Recentemente claudite</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Parametros de conto</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -974,6 +991,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">Inactive</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">Active</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Inactive</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Collectiones</string>
@@ -1313,7 +1335,7 @@
     <!-- Text for the button to read the privacy notice -->
     <string name="onboarding_privacy_notice_read_button">Lege nostre aviso de confidentialitate</string>
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Clauder</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Clauder</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Comenciar a navigar</string>
@@ -1421,6 +1443,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Cryptominatores</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Dactylogrammatores</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Detalios</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Blocate</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Permittite</string>
@@ -1446,7 +1471,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Impedi cargar avisos publicitari, videos e altere contento externe que contine codification de traciamento. Pote interessar le functionalitate de alcun sito web.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Cata vice le escudo es purpuree, %s ha blocate traciatores sur un sito. Tocca pro altere informationes.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Cata vice le escudo es purpuree, %s ha blocate traciatores sur un sito. Tocca pro altere informationes.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Le protectiones es ACTIVE pro iste sito</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1530,7 +1555,18 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Jammais salvar</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Autoplenar</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Autoplenar</string>
+
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">Plenar %1$s</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Plenar e salvar nomines de usator e contrasignos in sitos web usante %1$s.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">Plenar in altere apps</string>
+
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Plenar nomines de usator e contrasignos in altere apps sur tu apparato.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Synchronisar credentiales</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1714,7 +1750,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Catena de recerca a usar</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">Replaciar le recerca con “%s”. Exemplo:\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">Replaciar le recerca con “%s”. Exemplo:\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">Saper plus</string>
 
@@ -1851,6 +1887,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Cancellar</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Schedas inactive</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Le schedas es disponibile hic pro %s. Post ille tempore, le schedas se claudera automaticamente.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 dies</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 septimana</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Stabilir qual ligamines de sitos web, e-mails e messages se aperi automaticamente in Firefox.</string>
 
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index aeb8c6459d..14df47e5bb 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
 
 
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -126,6 +126,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">모두 표시</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">이전 탐색</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">탭 열기</string>
@@ -637,6 +642,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">한 달 후 닫기</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">삭제</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">활성화</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox는 때때로 연구를 설치하고 실행할 수 있습니다.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">더 알아보기</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">열린 탭</string>
@@ -664,6 +679,8 @@
     <string name="tab_tray_menu_item_share">모든 탭 공유</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">최근에 닫은 탭</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">최근에 닫음</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">계정 설정</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -969,6 +986,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">꺼짐</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">켜짐</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">꺼짐</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">모음집</string>
@@ -1318,7 +1340,7 @@
     <string name="onboarding_privacy_notice_read_button">개인정보처리방침 읽기</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">닫기</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">닫기</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">탐색 시작</string>
@@ -1421,6 +1443,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">암호화폐 채굴기</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">디지털 지문</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">상세 정보</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">차단됨</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">허용됨</string>
@@ -1445,7 +1470,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">추적 코드가 포함된 외부 광고, 동영상 및 기타 콘텐츠가 로드되지 않도록 합니다. 일부 웹 사이트의 기능에 영향을 줄 수 있습니다.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">방패가 자주색일 때마다 %s가 사이트에서 추적기를 차단합니다. 자세한 내용을 보시려면 누르세요.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">방패가 자주색일 때마다 %s가 사이트에서 추적기를 차단합니다. 자세한 내용을 보시려면 누르세요.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">이 사이트에서 보호 켜짐</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1529,7 +1554,17 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">저장 안 함</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">자동 채우기</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">자동 채우기</string>
+
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">%1$s에서 자동 채우기</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">%1$s 앱을 사용하는 동안 웹사이트에서 사용자 이름과 비밀번호를 채우고 저장합니다.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">다른 앱에서 자동 채우기</string>
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">기기의 다른 앱에서 사용자 이름과 비밀번호를 채웁니다.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Sync 로그인</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1713,7 +1748,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">사용할 검색 문자열</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">쿼리를 “%s”로 바꾸세요. 예:\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">쿼리를 “%s”로 바꾸세요. 예:\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">더 알아보기</string>
 
@@ -1855,6 +1890,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">취소</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">비활성 탭</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">탭은 여기에 %s 동안 유지됩니다. 그 이후에는 자동으로 닫힙니다.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30일</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1주</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Firefox에서 자동으로 열리도록 웹 사이트, 이메일 및 메시지의 링크를 설정합니다.</string>
 
diff --git a/app/src/main/res/values-sv-rSE/strings.xml b/app/src/main/res/values-sv-rSE/strings.xml
index ea8cae1911..1a9f7d7c1d 100644
--- a/app/src/main/res/values-sv-rSE/strings.xml
+++ b/app/src/main/res/values-sv-rSE/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
 
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_5">Privat %s</string>
@@ -121,6 +121,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Visa alla</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Tidigare utforskningar</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Öppna flikar</string>
@@ -632,6 +637,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Stäng efter en månad</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Ta bort</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Aktiv</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox kan installera och köra undersökningar då och då.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Läs mer</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Öppna flikar</string>
@@ -659,6 +674,8 @@
     <string name="tab_tray_menu_item_share">Dela alla flikar</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Nyligen stängda flikar</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">Nyligen stängda</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Kontoinställningar</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -955,6 +972,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">Av</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">På</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Av</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Samlingar</string>
@@ -1290,7 +1312,7 @@
     <string name="onboarding_privacy_notice_read_button">Läs vår sekretesspolicy</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Stäng</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Stäng</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Börja surfa</string>
@@ -1393,6 +1415,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Kryptogrävare</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Fingeravtrycksspårare</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Detaljer</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Blockerad</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Tillåten</string>
@@ -1417,7 +1442,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Stoppar externa annonser, videor och annat innehåll från laddning eftersom de kan innehålla spårningskod. Kan påverka vissa webbplatsfunktioner.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Varje gång skölden är lila har %s blockerat spårare på en webbplats. Klicka för mer information.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Varje gång skölden är lila har %s blockerat spårare på en webbplats. Klicka för mer information.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Skydd är PÅ för den här webbplatsen</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1499,7 +1524,16 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Spara aldrig</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Autofyll</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Autofyll</string>
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">Autofyll i %1$s</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Fyll i och spara användarnamn och lösenord på webbplatser medan du använder %1$s.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">Autofyll i andra appar</string>
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Fyll i användarnamn och lösenord i andra appar på din enhet.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Synkronisera inloggningar</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1681,7 +1715,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Söksträng som ska användas</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">Byt ut frågan med “%s”. Exempel:\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">Byt ut frågan med “%s”. Exempel:\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">Läs mer</string>
 
@@ -1820,6 +1854,17 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Avbryt</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Inaktiva flikar</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Flikar finns här i %s. Efter den tiden stängs flikarna automatiskt.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 dagar</string>
+
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 vecka</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Ställ in länkar från webbplatser, e-post och meddelanden så att de öppnas automatiskt i Firefox.</string>
 
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 1046171312..8c60059c5e 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="app_name_private_5">Приватний перегляд %s</string>
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -119,6 +119,11 @@
     <!-- Button text for showing all the tabs in the tabs tray -->
     <string name="recent_tabs_show_all">Показати всі</string>
 
+    <!-- History Metadata -->
+    <!-- Header text for a section on the home screen that displays grouped highlights from the
+         user's browsing history, such as topics they have researched or explored on the web -->
+    <string name="history_metadata_header">Минулі перегляди</string>
+
     <!-- Browser Fragment -->
     <!-- Content description (not visible, for screen readers etc.): Navigate to open tabs -->
     <string name="browser_tabs_button">Відкриті вкладки</string>
@@ -630,6 +635,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">Закрити через місяць</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">Вилучити</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">Активні</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox може час від часу встановлювати та виконувати дослідження.</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">Докладніше</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">Відкриті вкладки</string>
@@ -657,6 +672,8 @@
     <string name="tab_tray_menu_item_share">Поділитися всіма вкладками</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">Недавно закриті вкладки</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">Недавно закриті</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">Обліковий запис</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -952,6 +969,11 @@
     <!-- Summary of delete browsing data on quit preference if it is set to off -->
     <string name="delete_browsing_data_quit_off">Вимкнено</string>
 
+    <!-- Summary of studies preference if it is set to on -->
+    <string name="studies_on">Увімкнено</string>
+    <!-- Summary of studies data on quit preference if it is set to off -->
+    <string name="studies_off">Вимкнено</string>
+
     <!-- Collections -->
     <!-- Collections header on home fragment -->
     <string name="collections_header">Збірки</string>
@@ -1285,7 +1307,7 @@
     <string name="onboarding_privacy_notice_read_button">Повідомлення про приватність</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">Закрити</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">Закрити</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">Почати перегляд</string>
@@ -1388,6 +1410,9 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">Криптомайнери</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">Зчитування цифрового відбитка</string>
+    <!-- Button label for navigating to the Enhanced Tracking Protection details -->
+    <string name="enhanced_tracking_protection_details">Подробиці</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">Заблоковано</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">Дозволено</string>
@@ -1413,7 +1438,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">Блокує завантаження зовнішньої реклами, відео та іншого вмісту з вбудованим кодом стеження. Може вплинути на функціональність вебсайтів.</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">Коли %s блокує стеження на сайті, щит стає фіолетовим. Торкніться, щоб дізнатися більше.</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">Коли %s блокує стеження на сайті, щит стає фіолетовим. Торкніться, щоб дізнатися більше.</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">Захист на цьому сайті увімкнено</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1494,7 +1519,16 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">Ніколи не зберігати</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">Автозаповнення</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">Автозаповнення</string>
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">Автозаповнення у %1$s</string>
+    <!-- Description for the preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill_description">Заповнення та збереження імен користувачів та паролів вебсайтів під час використання %1$s.</string>
+    <!-- Preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill">Автозаповнення в інших програмах</string>
+    <!-- Description for the preference for autofilling logins from Fenix in other apps (e.g. autofilling the Twitter app) -->
+    <string name="preferences_android_autofill_description">Заповнення імен користувачів та паролів у інших програмах на цьому пристрої.</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">Синхронізація паролів</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1679,7 +1713,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">Запит для пошуку</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">Змініть запит на “%s”. Зразок:\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">Змініть запит на “%s”. Зразок:\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">Докладніше</string>
 
@@ -1818,6 +1852,16 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">Скасувати</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">Неактивні вкладки</string>
+    <!-- A description below the section of "inactive" tabs to notify the user when those tabs will be closed, if appropriate. See strings inactive_tabs_30_days and inactive_tabs_7_days for placeholders options. -->
+    <string name="inactive_tabs_description">Вкладки доступні тут впродовж %s. Після цього вони будуть автоматично закриті.</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 днів</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 тижня</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">Автоматично відкривати посилання з вебсайтів, електронних листів та повідомлень у Firefox.</string>
 
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 0f7ece8b66..a354726098 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
 
 
     <!-- App name for private browsing mode. The first parameter is the name of the app defined in app_name (for example: Fenix)-->
@@ -640,6 +640,16 @@
     <!-- Summary for tabs preference when auto closing tabs setting is set to auto close tabs after one month-->
     <string name="close_tabs_after_one_month_summary">1 个月后关闭</string>
 
+    <!-- Studies -->
+    <!-- Title of the remove studies button -->
+    <string name="studies_remove">移除</string>
+    <!-- Title of the active section on the studies list -->
+    <string name="studies_active">进行中</string>
+    <!-- Description for studies, it indicates why Firefox use studies -->
+    <string name="studies_description">Firefox 可能会不时地安装并运行一些研究项目。</string>
+    <!-- Learn more link for studies, links to an article for more information about studies. -->
+    <string name="studies_learn_more">详细了解</string>
+
     <!-- Sessions -->
     <!-- Title for the list of tabs -->
     <string name="tab_header_label">标签页</string>
@@ -667,6 +677,8 @@
     <string name="tab_tray_menu_item_share">分享所有标签页</string>
     <!-- Text shown in the menu to view recently closed tabs -->
     <string name="tab_tray_menu_recently_closed">最近关闭的标签页</string>
+    <!-- Text shown in the tabs tray inactive tabs section -->
+    <string name="tab_tray_inactive_recently_closed">最近关闭</string>
     <!-- Text shown in the menu to view account settings -->
     <string name="tab_tray_menu_account_settings">账户设置</string>
     <!-- Text shown in the menu to view tab settings -->
@@ -1315,7 +1327,7 @@
     <string name="onboarding_privacy_notice_read_button">阅读我们的隐私声明</string>
 
     <!-- Content description (not visible, for screen readers etc.): Close onboarding screen -->
-    <string name="onboarding_close">关闭</string>
+    <string name="onboarding_close" tools:ignore="UnusedResources">关闭</string>
 
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish">开始上网</string>
@@ -1418,6 +1430,7 @@
     <string name="preference_enhanced_tracking_protection_custom_cryptominers">加密货币挖矿程序</string>
     <!-- Preference for enhanced tracking protection for the custom protection settings -->
     <string name="preference_enhanced_tracking_protection_custom_fingerprinters">数字指纹跟踪程序</string>
+    <!-- Header for categories that are being being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_blocked">已拦截</string>
     <!-- Header for categories that are being not being blocked by current Enhanced Tracking Protection settings -->
     <string name="enhanced_tracking_protection_allowed">已允许</string>
@@ -1442,7 +1455,7 @@
     <!-- Description of tracking content that can be blocked by Enhanced Tracking Protection -->
     <string name="etp_tracking_content_description">停止加载包含跟踪代码的广告、视频和其他内容。可能会影响某些网站功能。</string>
     <!-- Enhanced Tracking Protection Onboarding Message shown in a dialog above the toolbar. The first parameter is the name of the application (For example: Fenix) -->
-    <string name="etp_onboarding_cfr_message">盾牌变成紫色时，代表 %s 拦截了该网站的跟踪器。点按以获取更多信息。</string>
+    <string name="etp_onboarding_cfr_message" tools:ignore="UnusedResources">盾牌变成紫色时，代表 %s 拦截了该网站的跟踪器。点按以获取更多信息。</string>
     <!-- Enhanced Tracking Protection message that protection is currently on for this site -->
     <string name="etp_panel_on">对此网站已开启保护</string>
     <!-- Enhanced Tracking Protection message that protection is currently off for this site -->
@@ -1524,7 +1537,11 @@
     <!-- Preference option for never saving passwords in Fenix -->
     <string name="preferences_passwords_save_logins_never_save">总不保存</string>
     <!-- Preference for autofilling saved logins in Fenix -->
-    <string name="preferences_passwords_autofill">自动填写</string>
+    <string name="preferences_passwords_autofill" tools:ignore="UnusedResources">自动填写</string>
+
+    <!-- Preference for autofilling saved logins in Firefox (in web content), %1$s will be replaced with the app name -->
+    <string name="preferences_passwords_autofill2">在 %1$s 中自动填充</string>
+
     <!-- Preference for syncing saved logins in Fenix -->
     <string name="preferences_passwords_sync_logins">同步登录信息</string>
     <!-- Preference for syncing saved logins in Fenix, when not signed in-->
@@ -1707,7 +1724,7 @@
     <!-- Placeholder text shown in the Search String TextField before a user enters text -->
     <string name="search_add_custom_engine_search_string_hint">搜索字符串</string>
     <!-- Description text for the Search String TextField. The %s is part of the string -->
-    <string name="search_add_custom_engine_search_string_example">用“%s”替换查询关键字。示例：\nhttps://www.google.com/search?q=%s</string>
+    <string formatted="false" name="search_add_custom_engine_search_string_example">用“%s”替换查询关键字。示例：\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">详细了解</string>
 
@@ -1845,6 +1862,14 @@
 	<!-- Dialog button text for canceling the rename top site prompt. -->
 	<string name="top_sites_rename_dialog_cancel">取消</string>
 
+    <!-- In-activate tabs in the tabs tray -->
+    <!-- Title text displayed in the tabs tray when a tab has been unused for 4 days. -->
+    <string name="inactive_tabs_title">非活动标签页</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_30_days">30 天</string>
+    <!-- The amount of time until a tab in the "inactive" section of the tabs tray will be closed. See string inactive_tabs_description as well -->
+    <string name="inactive_tabs_7_days">1 周</string>
+
     <!-- Default browser experiment -->
     <string name="default_browser_experiment_card_text">将网站、电子邮件及聊天工具中的链接设为在 Firefox 中自动打开。</string>