diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 3e1a0a9694..f86808bc8b 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -16,6 +16,8 @@
     <string name="content_description_disable_private_browsing_button">Zakáže režim anonymního prohlížení</string>
     <!-- Placeholder text shown in the search bar before a user enters text -->
     <string name="search_hint">Zadejte hledání nebo adresu</string>
+    <!-- Placeholder text shown in the search bar when using application search engines -->
+    <string name="application_search_hint">Zadejte hledaný výraz</string>
     <!-- No Open Tabs Message Description -->
     <string name="no_open_tabs_description">Tady se zobrazí vaše otevřené panely.</string>
 
@@ -40,8 +42,6 @@
     <!-- Home - Recently saved bookmarks -->
     <!-- Title for the home screen section with recently saved bookmarks. -->
     <string name="recent_bookmarks_title">Naposledy přidané</string>
-    <!-- Content description for the recently saved bookmarks section on the home screen. -->
-    <string moz:removedIn="100" name="recently_saved_bookmarks_content_description" tools:ignore="UnusedResources">Naposledy uložené záložky</string>
     <!-- Title for the button which navigates the user to show all of their saved bookmarks. -->
     <string moz:removedIn="101" name="recently_saved_show_all" tools:ignore="UnusedResources">Zobrazit vše</string>
     <!-- Content description for the button which navigates the user to show all of their saved bookmarks. -->
@@ -243,8 +243,6 @@
     <string name="search_suggestions_onboarding_title">Chcete našeptávat dotazy pro vyhledávač také v anonymním prohlížení?</string>
     <!-- Search suggestion onboarding hint description text, first parameter is the name of the app defined in app_name (for example: Fenix)-->
     <string name="search_suggestions_onboarding_text">%s bude sdílet text zadávaný do adresního řádku s vaším výchozím vyhledávačem.</string>
-    <!-- Search suggestion onboarding hint Learn more link text -->
-    <string moz:RemovedIn="100" name="search_suggestions_onboarding_learn_more_link" tools:ignore="UnusedResources">Zjistit více</string>
 
     <!-- Search engine suggestion title text. The first parameter is the name of teh suggested engine-->
     <string name="search_engine_suggestions_title">Hledat na %s</string>
@@ -734,7 +732,7 @@
     <!-- Open tabs menu item to save tabs to collection -->
     <string name="tabs_menu_save_to_collection1">Uložit panely do sbírky</string>
     <!-- Content description (not visible, for screen readers etc.): Opens the tab menu when pressed -->
-    <string name="tab_menu">Nabídka panelů</string>
+    <string moz:RemovedIn="103" name="tab_menu" tools:ignore="UnusedResources">Nabídka panelů</string>
 
 
     <!-- Text for the menu button to delete a collection -->
@@ -1184,39 +1182,12 @@
     <!-- Text for the cancel button for the history group deletion dialog -->
     <string name="delete_history_group_prompt_cancel">Zrušit</string>
 
-    <!-- Tips -->
-    <!-- text for firefox preview moving tip header "Firefox Preview" and "Firefox Nightly" are intentionally hardcoded -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_header" tools:ignore="UnusedResources">Firefox Preview je nyní Firefox Nightly</string>
-
-    <!-- text for firefox preview moving tip description -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_description" tools:ignore="UnusedResources">Firefox Nightly je aktualizován každou noc a obsahuje nové experimentální funkce. Může však být méně stabilní. Stáhněte si náš beta prohlížeč pro stabilnější zážitek.</string>
-    <!-- text for firefox preview moving tip button. "Firefox for Android Beta" is intentionally hardcoded -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_button_2" tools:ignore="UnusedResources">Získat Firefox Beta pro Android</string>
-
-    <!-- text for firefox preview moving tip header. "Firefox Nightly" is intentionally hardcoded -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_header_preview_installed" tools:ignore="UnusedResources">Firefox Nightly se mění</string>
-    <!-- text for firefox preview moving tip description -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_description_preview_installed" tools:ignore="UnusedResources">Tato aplikace už nebude nadále dostávat bezpečnostní aktualizace. Přestaňte ji prosím používat a nainstalujete si novou Nightly.
-        \n\nPro přesun svých záložek, přihlašovacích údajů a historie prohlížení si prosím založte účet Firefoxu.</string>
-    <!-- text for firefox preview moving tip button  -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_button_preview_installed" tools:ignore="UnusedResources">Používejte novou Nightly</string>
-
-    <!-- text for firefox preview moving tip header. "Firefox Nightly" is intentionally hardcoded -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_header_preview_not_installed" tools:ignore="UnusedResources">Firefox Nightly se mění</string>
-    <!-- text for firefox preview moving tip description -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_description_preview_not_installed" tools:ignore="UnusedResources">Tato aplikace už nebude nadále dostávat bezpečnostní aktualizace. Přestaňte ji prosím používat a stáhněte si novou Nightly.
-        \n\nPro přesun svých záložek, přihlašovacích údajů a historie prohlížení si prosím založte účet Firefoxu.</string>
-    <!-- text for firefox preview moving tip button  -->
-    <string moz:RemovedIn="100" name="tip_firefox_preview_moved_button_preview_not_installed" tools:ignore="UnusedResources">Stáhněte si novou Nightly</string>
-
     <!-- Onboarding -->
     <!-- Text for onboarding welcome message
     The first parameter is the name of the app (e.g. Firefox Preview) -->
     <string name="onboarding_header">Vítá vás %s</string>
     <!-- text for the Firefox account onboarding sign in card header. The word "Firefox" should not be translated -->
     <string name="onboarding_account_sign_in_header_1">Synchronizace Firefoxu mezi zařízeními</string>
-    <!-- text for the Firefox account onboarding sign in card header. The first parameter is the name of the application.-->
-    <string moz:RemovedIn="100" name="onboarding_account_sign_in_header_2" tools:ignore="UnusedResources">Synchronizace aplikace %1$s mezi zařízeními</string>
     <!-- Text for the button to learn more about signing in to your Firefox account. The first parameter is the name of the application.-->
     <string name="onboarding_manual_sign_in_description_2">Přeneste si své záložky, historii a hesla do aplikace %1$s i na tomto zařízení.</string>
     <!-- text for the button to manually sign into Firefox account. -->
@@ -1630,8 +1601,10 @@
     <string name="addresses_street_address">Ulice</string>
     <!-- The header for the city of an address -->
     <string name="addresses_city">Město</string>
-    <!-- The header for the state of an address -->
+    <!-- The header for the subregion of an address when "state" should be used -->
     <string name="addresses_state">Stát</string>
+    <!-- The header for the subregion of an address when "province" should be used -->
+    <string name="addresses_province">Kraj</string>
     <!-- The header for the zip code of an address -->
     <string name="addresses_zip">PSČ</string>
     <!-- The header for the country or region of an address -->
@@ -1691,20 +1664,6 @@
     <!-- Text shown when a user successfully deletes a custom search engine -->
     <string name="search_delete_search_engine_success_message">Vyhledávač %s odebrán</string>
 
-    <!-- Title text shown for the migration screen to the new browser. Placeholder replaced with app name -->
-    <string moz:removedIn="100" name="migration_title" tools:ignore="UnusedResources">Vítá vás úplně nová aplikace %s</string>
-
-    <!-- Description text followed by a list of things migrating (e.g. Bookmarks, History). Placeholder replaced with app name-->
-    <string moz:removedIn="100" name="migration_description" tools:ignore="UnusedResources">Zcela přepracovaný prohlížeč už na vás čeká. Je rychlejší a přináší funkce, která vám usnadní práci i zábavu.\n\nPočkejte, než se prohlížeč %s aktualizuje</string>
-    <!-- Text on the disabled button while in progress. Placeholder replaced with app name -->
-    <string moz:removedIn="100" name="migration_updating_app_button_text" tools:ignore="UnusedResources">Probíhá aktualizace aplikace %s…</string>
-    <!-- Text on the enabled button. Placeholder replaced with app name-->
-    <string moz:removedIn="100" name="migration_update_app_button" tools:ignore="UnusedResources">Spustit %s</string>
-    <!-- Accessibility description text for a completed migration item -->
-    <string moz:removedIn="100" name="migration_icon_description" tools:ignore="UnusedResources">Přesun dat dokončen</string>
-    <!--Text on list of migrated items (e.g. Settings, History, etc.)-->
-    <string moz:removedIn="100" name="migration_text_passwords" tools:ignore="UnusedResources">Hesla</string>
-
     <!-- Heading for the instructions to allow a permission -->
     <string name="phone_feature_blocked_intro">Pro povolení:</string>
     <!-- First step for the allowing a permission -->
@@ -1798,8 +1757,6 @@
     <string name="synced_tabs_enable_tab_syncing">Zapněte nejdříve synchronizaci panelů.</string>
     <!-- Text displayed when user has no tabs that have been synced -->
     <string name="synced_tabs_no_tabs">Ve vašich zařízeních nejsou otevřené žádné panely.</string>
-    <!-- Text displayed when user has no tabs that have been synced. The first parameter is the name of the application.-->
-    <string moz:RemovedIn="100" name="synced_tabs_no_tabs_2" tools:ignore="UnusedResources">Ve vašich zařízeních nejsou v aplikaci %1$s otevřené žádné panely.</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">Seznam panelů z ostatních zařízení.</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 -->
@@ -1851,6 +1808,11 @@
     <!-- Content description for closing all inactive tabs -->
     <string name="inactive_tabs_delete_all">Zavřít všechny neaktivní panely</string>
 
+    <!-- Content description for expanding the inactive tabs section. -->
+    <string name="inactive_tabs_expand_content_description">Zobrazit neaktivní panely</string>
+    <!-- Content description for collapsing the inactive tabs section. -->
+    <string name="inactive_tabs_collapse_content_description">Skrýt neaktivní panely</string>
+
     <!-- Inactive tabs auto-close message in the tabs tray -->
     <!-- The header text of the auto-close message when the user is asked if they want to turn on the auto-closing of inactive tabs. -->
     <string name="inactive_tabs_auto_close_message_header" tools:ignore="UnusedResources">Chcete automaticky zavírat měsíc staré neaktivní panely?</string>