diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index f46eef2745..7f078cd5ec 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -760,7 +760,7 @@
     <string name="pwa_site_controls_title_private">%1$s (yksityinen tila)</string>
 
     <!-- Title text for the normal tabs header in the tabs tray which are not part of any tab grouping. -->
-    <string name="tab_tray_header_title_1">Muut välilehdet</string>
+    <string moz:removedIn="104" name="tab_tray_header_title_1" tools:ignore="UnusedResources">Muut välilehdet</string>
 
     <!-- History -->
     <!-- Text for the button to search all history -->
@@ -795,6 +795,14 @@
     <!-- The page title for browsing history coming from other devices. -->
     <string name="history_from_other_devices">Muilta laitteilta</string>
 
+    <!-- The synced history sign in dialog message -->
+    <string name="history_sign_in_message">Kirjaudu sisään, jotta voit katsella historiaa synkronoituna muista laitteistasi.</string>
+    <!-- The synced history sign in dialog button text -->
+    <string name="history_sign_in_button">Kirjaudu sisään</string>
+
+    <!-- The synced history sign in dialog create a new account link -->
+    <string name="history_sign_in_create_account"><![CDATA[<u>Tai luo Firefox-tili aloittaaksesi synkronoinnin</u>]]></string>
+
     <!-- Downloads -->
     <!-- Text for the snackbar to confirm that multiple downloads items have been removed -->
     <string name="download_delete_multiple_items_snackbar_1">Lataukset poistettu</string>
@@ -1167,7 +1175,19 @@
     <string name="delete_browsing_data_on_quit_action">Lopeta</string>
 
     <!-- Dialog message to the user asking to delete browsing data. -->
-    <string name="delete_browsing_data_prompt_message">Kaikki selaustietosi poistetaan.</string>
+    <string moz:removedIn="104" name="delete_browsing_data_prompt_message" tools:ignore="UnusedResources">Kaikki selaustietosi poistetaan.</string>
+
+    <!-- Title text of a delete browsing data dialog. -->
+    <string name="delete_history_prompt_title">Tyhjennettävä aikajakso</string>
+    <!-- Body text of a delete browsing data dialog. -->
+    <string name="delete_history_prompt_body">Poistaa historian (mukaan lukien muista laitteista synkronoidut historiat), evästeet ja muut selaustiedot.</string>
+    <!-- Radio button in the delete browsing data dialog to delete history items for the last hour. -->
+    <string name="delete_history_prompt_button_last_hour">Viimeinen tunti</string>
+    <!-- Radio button in the delete browsing data dialog to delete history items for today and yesterday. -->
+    <string name="delete_history_prompt_button_today_and_yesterday">Tämä ja eilinen päivä</string>
+    <!-- Radio button in the delete browsing data dialog to delete all history. -->
+    <string name="delete_history_prompt_button_everything">Kaikki</string>
+
     <!-- Dialog message to the user asking to delete browsing data. Parameter will be replaced by app name. -->
     <string name="delete_browsing_data_prompt_message_3">%s poistaa valitut selaustiedot.</string>
     <!-- Text for the cancel button for the data deletion dialog -->
@@ -1180,8 +1200,8 @@
     <!-- Text for the snackbar to show the user that the deletion of browsing data is in progress -->
     <string name="deleting_browsing_data_in_progress">Poistetaan selaustietoja…</string>
 
-    <!-- Dialog message to the user asking to delete all history items inside the opened group. -->
-    <string name="delete_history_group_prompt_message">Tämä poistaa kaikki kohteet.</string>
+    <!-- Dialog message to the user asking to delete all history items inside the opened group. Parameter will be replaced by a history group name. -->
+    <string name="delete_all_history_group_prompt_message">Poista kaikki sivustot ryhmästä “%s”</string>
     <!-- Text for the cancel button for the history group deletion dialog -->
     <string name="delete_history_group_prompt_cancel">Peruuta</string>
     <!-- Text for the allow button for the history group dialog -->
@@ -1598,8 +1618,6 @@
     <string name="addresses_edit_address">Muokkaa osoitetta</string>
     <!-- Title of the "Manage addresses" screen -->
     <string name="addresses_manage_addresses">Hallitse osoitteita</string>
-    <!-- The header for the full name of an address -->
-    <string moz:removedIn="102" name="addresses_full_name" tools:ignore="UnusedResources">Koko nimi</string>
     <!-- The header for the first name of an address -->
     <string name="addresses_first_name">Etunimi</string>
     <!-- The header for the middle name of an address -->
@@ -1866,4 +1884,5 @@
     <string name="experiments_snackbar">Ota telemetria käyttöön tietojen lähettämiseksi.</string>
     <!-- Snackbar button text to navigate to telemetry settings.-->
     <string name="experiments_snackbar_button">Siirry asetuksiin</string>
+    <string name="firefox_suggest_header">Firefox-ehdotukset</string>
 </resources>
diff --git a/app/src/main/res/values-is/strings.xml b/app/src/main/res/values-is/strings.xml
index 880e5c1d60..8497467d1d 100644
--- a/app/src/main/res/values-is/strings.xml
+++ b/app/src/main/res/values-is/strings.xml
@@ -747,7 +747,7 @@
     <string name="pwa_site_controls_title_private">%1$s (huliðshamur)</string>
 
     <!-- Title text for the normal tabs header in the tabs tray which are not part of any tab grouping. -->
-    <string name="tab_tray_header_title_1">Aðrir flipar</string>
+    <string moz:removedIn="104" name="tab_tray_header_title_1" tools:ignore="UnusedResources">Aðrir flipar</string>
 
     <!-- History -->
     <!-- Text for the button to search all history -->
@@ -1153,7 +1153,18 @@
     <string name="delete_browsing_data_on_quit_action">Hætta</string>
 
     <!-- Dialog message to the user asking to delete browsing data. -->
-    <string name="delete_browsing_data_prompt_message">Þetta mun eyða öllum vafragögnum þínum.</string>
+    <string moz:removedIn="104" name="delete_browsing_data_prompt_message" tools:ignore="UnusedResources">Þetta mun eyða öllum vafragögnum þínum.</string>
+    <!-- Title text of a delete browsing data dialog. -->
+    <string name="delete_history_prompt_title">Tímabil sem á að hreinsa</string>
+    <!-- Body text of a delete browsing data dialog. -->
+    <string name="delete_history_prompt_body">Fjarlægir feril (þar á meðal feril samstilltan úr öðrum tækjum), vefkökur og önnur vafragögn.</string>
+    <!-- Radio button in the delete browsing data dialog to delete history items for the last hour. -->
+    <string name="delete_history_prompt_button_last_hour">Síðustu klukkustund</string>
+    <!-- Radio button in the delete browsing data dialog to delete history items for today and yesterday. -->
+    <string name="delete_history_prompt_button_today_and_yesterday">Í dag og í gær</string>
+    <!-- Radio button in the delete browsing data dialog to delete all history. -->
+    <string name="delete_history_prompt_button_everything">Allt</string>
+
     <!-- Dialog message to the user asking to delete browsing data. Parameter will be replaced by app name. -->
     <string name="delete_browsing_data_prompt_message_3">%s mun eyða völdum vafragögnum.</string>
     <!-- Text for the cancel button for the data deletion dialog -->
@@ -1165,8 +1176,8 @@
     <!-- Text for the snackbar to show the user that the deletion of browsing data is in progress -->
     <string name="deleting_browsing_data_in_progress">Eyði vafragögnum…</string>
 
-    <!-- Dialog message to the user asking to delete all history items inside the opened group. -->
-    <string name="delete_history_group_prompt_message">Þetta mun eyða öllum atriðum.</string>
+    <!-- Dialog message to the user asking to delete all history items inside the opened group. Parameter will be replaced by a history group name. -->
+    <string name="delete_all_history_group_prompt_message">Eyða öllum vefsvæðum í “%s”</string>
     <!-- Text for the cancel button for the history group deletion dialog -->
     <string name="delete_history_group_prompt_cancel">Hætta við</string>
     <!-- Text for the allow button for the history group dialog -->
@@ -1580,8 +1591,6 @@
     <string name="addresses_edit_address">Breyt tölvupóstfangi</string>
     <!-- Title of the "Manage addresses" screen -->
     <string name="addresses_manage_addresses">Sýsla með tölvupóstföng</string>
-    <!-- The header for the full name of an address -->
-    <string moz:removedIn="102" name="addresses_full_name" tools:ignore="UnusedResources">Fullt nafn</string>
     <!-- The header for the first name of an address -->
     <string name="addresses_first_name">Skírnarnafn</string>
     <!-- The header for the middle name of an address -->