diff --git a/app/src/main/res/values-be/strings.xml b/app/src/main/res/values-be/strings.xml
index dd3a98295e..c46048b854 100644
--- a/app/src/main/res/values-be/strings.xml
+++ b/app/src/main/res/values-be/strings.xml
@@ -91,9 +91,14 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Адхіліць</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Змяніце выклад адкрытых картак. Перайдзіце ў налады і абярыце сетку ў раздзеле выгляду картак.</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">Перайсці ў налады</string>
 
+    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
+    <string name="tab_tray_grid_view_banner_negative_button_text">Закрыць</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Новая картка</string>
diff --git a/app/src/main/res/values-en-rGB/strings.xml b/app/src/main/res/values-en-rGB/strings.xml
index db80700290..85b7d40184 100644
--- a/app/src/main/res/values-en-rGB/strings.xml
+++ b/app/src/main/res/values-en-rGB/strings.xml
@@ -19,6 +19,10 @@
     <!-- No Private Tabs Message Description -->
     <string name="no_private_tabs_description">Your private tabs will be shown here.</string>
 
+    <!-- Default title for pinned Baidu top site that links to Baidu home page  -->
+    <string name="default_top_site_baidu">Baidu</string>
+    <!-- Default title for pinned JD top site that links to JD home page  -->
+    <string name="default_top_site_jd">JD</string>
     <!-- Message announced to the user when tab tray is selected with 1 tab -->
     <string name="open_tab_tray_single">1 open tab. Tap to switch tabs.</string>
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
@@ -92,6 +96,13 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Dismiss</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Change the layout of open tabs. Go to settings and select grid under tab view.</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">Go to settings</string>
+    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
+    <string name="tab_tray_grid_view_banner_negative_button_text">Dismiss</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">New tab</string>
@@ -429,6 +440,10 @@
     <string name="preferences_marketing_data">Marketing data</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Shares data about what features you use in %1$s with Leanplum, our mobile marketing vendor.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Studies</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Allows Mozilla to install and run studies</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experiments</string>
     <!-- Summary for experiments preferences -->
@@ -578,6 +593,8 @@
     <string name="tab_tray_title">Open Tabs</string>
     <!-- Text shown in the menu for saving tabs to a collection -->
     <string name="tab_tray_menu_item_save">Save to collection</string>
+    <!-- Text shown in the menu for the collection selector -->
+    <string name="tab_tray_menu_select">Select</string>
     <!-- Text shown in the menu for sharing all tabs -->
     <string name="tab_tray_menu_item_share">Share all tabs</string>
     <!-- Text shown in the menu to view recently closed tabs -->
@@ -592,8 +609,18 @@
     <string name="tab_tray_menu_home">Go home</string>
     <!-- Shortcut action to toggle private mode -->
     <string name="tab_tray_menu_toggle">Toggle tab mode</string>
+    <!-- Text shown in the multiselect menu for bookmarking selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_bookmark">Bookmark</string>
+    <!-- Text shown in the multiselect menu for closing selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_close">Close</string>
+    <!-- Content description for tabs tray multiselect share button -->
+    <string name="tab_tray_multiselect_share_content_description">Share selected tabs</string>
+    <!-- Content description for tabs tray multiselect menu -->
+    <string name="tab_tray_multiselect_menu_content_description">Selected tabs menu</string>
     <!-- Content description (not visible, for screen readers etc.): Removes tab from collection button. Removes the selected tab from collection when pressed -->
     <string name="remove_tab_from_collection">Remove tab from collection</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Select tabs</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Close tab</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -964,6 +991,12 @@
     <string name="snackbar_tab_closed">Tab closed</string>
     <!-- Text shown in snackbar when user closes all tabs -->
     <string name="snackbar_tabs_closed">Tabs closed</string>
+    <!-- Text shown in snackbar when user closes tabs -->
+    <string name="snackbar_message_tabs_closed">Tabs closed!</string>
+    <!-- Text shown in snackbar when user bookmarks a list of tabs -->
+    <string name="snackbar_message_bookmarks_saved">Bookmarks saved!</string>
+    <!-- Text shown in snackbar action for viewing bookmarks -->
+    <string name="snackbar_message_bookmarks_view">View</string>
     <!-- Text shown in snackbar when user adds a site to top sites -->
     <string name="snackbar_added_to_top_sites">Added to top sites!</string>
     <!-- Text shown in snackbar when user closes a private tab -->
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 8be8d71a2b..02d5172eab 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -455,6 +455,10 @@
     <string name="preferences_marketing_data">Маркетинговые данные</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Делиться данными о том, что вы используете в %1$s, с Leanplum, нашим мобильным маркетинговым вендором.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Исследования</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Разрешить Mozilla устанавливать и запускать исследования</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Исследования</string>
     <!-- Summary for experiments preferences -->