diff --git a/app/src/main/res/values-be/strings.xml b/app/src/main/res/values-be/strings.xml
index 93f735133..dd3a98295 100644
--- a/app/src/main/res/values-be/strings.xml
+++ b/app/src/main/res/values-be/strings.xml
@@ -91,6 +91,9 @@
     <!-- 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 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>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Новая картка</string>
@@ -428,6 +431,10 @@
     <string name="preferences_marketing_data">Маркетынгавыя дадзеныя</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Дзяліцца звесткамі пра магчымасці, якімі вы карыстаецеся ў %1$s, з нашым пастаўшчыком мабільнага маркетынгу Leanplum.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Даследаванні</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Дазволіць Mozilla ўсталёўваць і запускаць даследаванні</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Доследы</string>
 
@@ -584,6 +591,8 @@
     <string name="tab_tray_title">Адкрытыя карткі</string>
     <!-- Text shown in the menu for saving tabs to a collection -->
     <string name="tab_tray_menu_item_save">Захаваць у калекцыі</string>
+    <!-- Text shown in the menu for the collection selector -->
+    <string name="tab_tray_menu_select">Выбраць</string>
     <!-- Text shown in the menu for sharing all tabs -->
     <string name="tab_tray_menu_item_share">Падзяліцца ўсімі карткамі</string>
     <!-- Text shown in the menu to view recently closed tabs -->
@@ -598,8 +607,18 @@
     <string name="tab_tray_menu_home">Дадому</string>
     <!-- Shortcut action to toggle private mode -->
     <string name="tab_tray_menu_toggle">Пераключыць рэжым картак</string>
+    <!-- Text shown in the multiselect menu for bookmarking selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_bookmark">Закладка</string>
+    <!-- Text shown in the multiselect menu for closing selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_close">Закрыць</string>
+    <!-- Content description for tabs tray multiselect share button -->
+    <string name="tab_tray_multiselect_share_content_description">Падзяліцца выбранымі карткамі</string>
+    <!-- Content description for tabs tray multiselect menu -->
+    <string name="tab_tray_multiselect_menu_content_description">Меню выбраных картак</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">Выдаліць картку з калекцыі</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Выбраць карткі</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Закрыць картку</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -980,6 +999,12 @@
     <!-- Text shown in snackbar when user closes all tabs -->
     <string name="snackbar_tabs_closed">Карткі закрыты</string>
 
+    <!-- Text shown in snackbar when user closes tabs -->
+    <string name="snackbar_message_tabs_closed">Карткі закрыты!</string>
+    <!-- Text shown in snackbar when user bookmarks a list of tabs -->
+    <string name="snackbar_message_bookmarks_saved">Закладкі захаваны!</string>
+    <!-- Text shown in snackbar action for viewing bookmarks -->
+    <string name="snackbar_message_bookmarks_view">Паглядзець</string>
     <!-- Text shown in snackbar when user adds a site to top sites -->
     <string name="snackbar_added_to_top_sites">Дададзена да папулярных сайтаў</string>
     <!-- Text shown in snackbar when user closes a private tab -->
diff --git a/app/src/main/res/values-cak/strings.xml b/app/src/main/res/values-cak/strings.xml
index 6a5a9e2b8..7b017020b 100644
--- a/app/src/main/res/values-cak/strings.xml
+++ b/app/src/main/res/values-cak/strings.xml
@@ -458,6 +458,10 @@
     <string name="preferences_marketing_data">Marketin tzij</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Ke\'akomonij taq tzij chi rij ri taq samaj nawokisaj pa %1$s rik\'in Leanplum, ri ya\'öl qamarketin richin oyonib\'äl.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Taq tijonïk</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Taya\' q\'ij chi ri Mozilla nuyäk chuqa\' nub\'än taq tijonïk</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Taq solna\'oj</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index 473886979..df363230a 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -443,6 +443,10 @@
     <string name="preferences_marketing_data">Data marchnata</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Yn rhannu data am ba nodweddion rydych chi’n eu defnyddio yn %1$s gyda Leanplum, ein gwerthwr marchnata symudol.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Astudiaethau</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Yn caniatáu i Mozilla osod a rhedeg astudiaethau</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Arbrofion</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 9e87c8b07..2088e226f 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -452,6 +452,10 @@
     <string name="preferences_marketing_data">Marketing-Daten</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Gibt Daten darüber, welche Funktionen Sie in %1$s verwenden, an Leanplum weiter, unseren Anbieter für mobiles Marketing.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Studien</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Ermöglicht Mozilla die Installation und Durchführung von Studien</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experimente</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index ede060a71..06ba0b7d3 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -450,6 +450,10 @@
     <string name="preferences_marketing_data">Δεδομένα μάρκετινγκ</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Αποστέλλει δεδομένα σχετικά με τις λειτουργίες που χρησιμοποιείτε στο %1$s με το Leanplum, την εταιρεία μάρκετινγκ για κινητές συσκευές.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Μελέτες</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Επιτρέπει στο Mozilla την εγκατάσταση και εκτέλεση μελετών</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Πειράματα</string>
 
diff --git a/app/src/main/res/values-es-rAR/strings.xml b/app/src/main/res/values-es-rAR/strings.xml
index 8074584b5..46c8522f0 100644
--- a/app/src/main/res/values-es-rAR/strings.xml
+++ b/app/src/main/res/values-es-rAR/strings.xml
@@ -451,6 +451,10 @@
     <string name="preferences_marketing_data">Datos de marketing</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Comparte datos acerca de las funciones que usás en %1$s con Leanplum, nuestro proveedor de marketing para móviles.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Estudios</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Permite que Mozilla instale y realice estudios</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experimentos</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-es-rCL/strings.xml b/app/src/main/res/values-es-rCL/strings.xml
index 9e9643ad0..e04303375 100644
--- a/app/src/main/res/values-es-rCL/strings.xml
+++ b/app/src/main/res/values-es-rCL/strings.xml
@@ -441,6 +441,10 @@
     <string name="preferences_marketing_data">Datos de marketing</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Comparte datos acerca de las funcionalidades que usas en %1$s con Leanplum, nuestro proveedor de marketing para móviles.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Estudios</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Permite a Mozilla instalar y realizar estudios</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experimentos</string>
     <!-- Summary for experiments preferences -->
@@ -590,6 +594,8 @@
     <string name="tab_tray_title">Pestañas abiertas</string>
     <!-- Text shown in the menu for saving tabs to a collection -->
     <string name="tab_tray_menu_item_save">Guardar en la colección</string>
+    <!-- Text shown in the menu for the collection selector -->
+    <string name="tab_tray_menu_select">Seleccionar</string>
     <!-- Text shown in the menu for sharing all tabs -->
     <string name="tab_tray_menu_item_share">Compartir todas las pestañas</string>
     <!-- Text shown in the menu to view recently closed tabs -->
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index f68f9305a..2e37ef108 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -625,6 +625,8 @@
     <string name="tab_tray_multiselect_menu_content_description">Menu des onglets sélectionnés</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">Supprimer l’onglet de la collection</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Sélectionner des onglets</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Fermer l’onglet</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
diff --git a/app/src/main/res/values-fy-rNL/strings.xml b/app/src/main/res/values-fy-rNL/strings.xml
index d642e9a13..4ba850124 100644
--- a/app/src/main/res/values-fy-rNL/strings.xml
+++ b/app/src/main/res/values-fy-rNL/strings.xml
@@ -444,6 +444,10 @@
     <string name="preferences_marketing_data">Marketinggegevens</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Dielt gegevens oer hokker funksjes jo yn %1$s brûke mei Leanplum, ús leveransier fan mobile marketing.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Undersiken</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Stelt Mozilla yn steat om ûndersiken te ynstallearjen en út te fieren</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Eksperiminten</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-hr/strings.xml b/app/src/main/res/values-hr/strings.xml
index 654f0318e..4600da802 100644
--- a/app/src/main/res/values-hr/strings.xml
+++ b/app/src/main/res/values-hr/strings.xml
@@ -442,6 +442,10 @@
     <string name="preferences_marketing_data">Marketinški podaci</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Dijeli podatke o funkcijama koje upotrebljavaš u %1$s s Leanplumom, našim pružateljem usluga mobilnog marketinga.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Istraživanja</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Omogućuje Mozilli instalirati i pokrenuti istraživanja</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Eksperimenti</string>
 
diff --git a/app/src/main/res/values-hsb/strings.xml b/app/src/main/res/values-hsb/strings.xml
index 4f81b4440..58c5c4fa6 100644
--- a/app/src/main/res/values-hsb/strings.xml
+++ b/app/src/main/res/values-hsb/strings.xml
@@ -444,6 +444,10 @@
     <string name="preferences_marketing_data">Marketingowe daty</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Dźěli daty wo tym, kotre funkcije w %1$s wužiwaće, z Leanplum, našim poskićowarjom za mobilny marketing.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Studije</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Mozilla dowolić, studije instalować a přewjesć</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Eksperimenty</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 51beaed8b..c149d2c78 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -22,6 +22,10 @@
     <!-- No Private Tabs Message Description -->
     <string name="no_private_tabs_description">Le schede anonime verranno mostrate qui.</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">Aperta 1 scheda. Tocca per cambiare scheda.</string>
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
@@ -93,6 +97,13 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Chiudi</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Cambia la disposizione delle schede aperte. Vai alle impostazioni e seleziona Griglia sotto Visualizzazione schede.</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">Vai alle impostazioni</string>
+    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
+    <string name="tab_tray_grid_view_banner_negative_button_text">Annulla</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Nuova scheda</string>
@@ -608,8 +619,18 @@
     <string name="tab_tray_menu_home">Torna alla schermata principale</string>
     <!-- Shortcut action to toggle private mode -->
     <string name="tab_tray_menu_toggle">Attiva/disattiva la modalità scheda</string>
+    <!-- Text shown in the multiselect menu for bookmarking selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_bookmark">Segnalibro</string>
+    <!-- Text shown in the multiselect menu for closing selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_close">Chiudi</string>
+    <!-- Content description for tabs tray multiselect share button -->
+    <string name="tab_tray_multiselect_share_content_description">Condividi le schede selezionate</string>
+    <!-- Content description for tabs tray multiselect menu -->
+    <string name="tab_tray_multiselect_menu_content_description">Menu schede selezionate</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">Rimuovi scheda dalla raccolta</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Seleziona schede</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Chiudi scheda</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -1001,6 +1022,12 @@
     <string name="snackbar_tab_closed">Scheda chiusa</string>
     <!-- Text shown in snackbar when user closes all tabs -->
     <string name="snackbar_tabs_closed">Schede chiuse</string>
+    <!-- Text shown in snackbar when user closes tabs -->
+    <string name="snackbar_message_tabs_closed">Schede chiuse.</string>
+    <!-- Text shown in snackbar when user bookmarks a list of tabs -->
+    <string name="snackbar_message_bookmarks_saved">Segnalibri salvati.</string>
+    <!-- Text shown in snackbar action for viewing bookmarks -->
+    <string name="snackbar_message_bookmarks_view">Visualizza</string>
     <!-- Text shown in snackbar when user adds a site to top sites -->
     <string name="snackbar_added_to_top_sites">Aggiunto ai siti principali</string>
     <!-- Text shown in snackbar when user closes a private tab -->
diff --git a/app/src/main/res/values-iw/strings.xml b/app/src/main/res/values-iw/strings.xml
index a3c4d8356..e9be788a1 100644
--- a/app/src/main/res/values-iw/strings.xml
+++ b/app/src/main/res/values-iw/strings.xml
@@ -443,6 +443,10 @@
     <string name="preferences_marketing_data">נתוני שיווק</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">שיתוף מידע על התכונות שהכי משמשות אותך ב־%1$s עם Leanplum, ספק השיווק שלנו למכשירים ניידים.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">מחקרים</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">מאפשר ל־Mozilla להתקין ולהריץ מחקרים</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">ניסויים</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index e5546b792..db42b30d8 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -457,6 +457,10 @@
     <string name="preferences_marketing_data">마케팅 데이터</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">%1$s에서 사용하는 기능에 대한 데이터를 모바일 마케팅 공급업체인 Leanplum과 공유합니다.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">연구</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Mozilla가 연구를 설치하고 실행하도록 허용</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">실험</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-nb-rNO/strings.xml b/app/src/main/res/values-nb-rNO/strings.xml
index 717443796..c8b80cd31 100644
--- a/app/src/main/res/values-nb-rNO/strings.xml
+++ b/app/src/main/res/values-nb-rNO/strings.xml
@@ -447,6 +447,10 @@
     <string name="preferences_marketing_data">Markedsføringsdata</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Deler data om hvilke funksjoner du bruker i %1$s med Leanplum, vår mobile markedsføringsleverandør.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Undersøkelse</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Tillater Mozilla å installere og kjøre undersøkelser</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Eksperimenter</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index b0631b2a8..efab2f832 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -449,6 +449,10 @@
     <string name="preferences_marketing_data">Marketinggegevens</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Deelt gegevens over welke functies u in %1$s gebruikt met Leanplum, onze leverancier van mobiele marketing.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Onderzoeken</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Stelt Mozilla in staat om onderzoeken te installeren en uit te voeren</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experimenten</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 83c865841..1cbb724fd 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -443,6 +443,10 @@
     <string name="preferences_marketing_data">Dados de marketing</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Compartilhar dados sobre que recursos você usa no %1$s com o Leanplum, nosso fornecedor de marketing para celular.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Estudos</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Permitir que a Mozilla instale e execute estudos</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experimentos</string>
 
diff --git a/app/src/main/res/values-rm/strings.xml b/app/src/main/res/values-rm/strings.xml
index 757004e05..209fa1972 100644
--- a/app/src/main/res/values-rm/strings.xml
+++ b/app/src/main/res/values-rm/strings.xml
@@ -19,6 +19,10 @@
     <!-- No Private Tabs Message Description -->
     <string name="no_private_tabs_description">Tabs privats averts vegnan mussads qua.</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 tab avert. Tutgar per midar tab.</string>
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
@@ -90,6 +94,9 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Serrar</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Mida il layout da tabs averts. Acceda als parameters e tscherna griglia sut vista da tabs.</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Nov tab</string>
diff --git a/app/src/main/res/values-sq/strings.xml b/app/src/main/res/values-sq/strings.xml
index b2754a0e7..c23c28a6a 100644
--- a/app/src/main/res/values-sq/strings.xml
+++ b/app/src/main/res/values-sq/strings.xml
@@ -18,6 +18,10 @@
 
     <!-- No Private Tabs Message Description -->
     <string name="no_private_tabs_description">Skedat tuaja private do të shfaqen këtu.</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 skedë e hapur. Prekeni që të ndërroni skeda.</string>
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
@@ -91,6 +95,13 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Hidhe tej</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Ndryshoni skemën e skedave të hapura. Shkoni te rregullimet dhe përzgjidhni rrjetë nën pamjen skeda.</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">Shko te rregullimet</string>
+    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
+    <string name="tab_tray_grid_view_banner_negative_button_text">Hidhe tej</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Skedë e re</string>
@@ -430,6 +441,10 @@
     <string name="preferences_marketing_data">Të dhëna marketingu</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Ndan me Leanplum-in, furnizuesi ynë i marketingut për celular, të dhëna rreth se cilat veçori përdorni në %1$s.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Studime</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">E lejon Mozilla-n të instalojë dhe xhirojë studime</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Eksperimente</string>
     <!-- Summary for experiments preferences -->
@@ -578,6 +593,8 @@
     <string name="tab_tray_title">Hapi Skedat</string>
     <!-- Text shown in the menu for saving tabs to a collection -->
     <string name="tab_tray_menu_item_save">Ruaje në koleksion</string>
+    <!-- Text shown in the menu for the collection selector -->
+    <string name="tab_tray_menu_select">Përzgjidhe</string>
     <!-- Text shown in the menu for sharing all tabs -->
     <string name="tab_tray_menu_item_share">Nda krejt skedat</string>
     <!-- Text shown in the menu to view recently closed tabs -->
@@ -592,8 +609,18 @@
     <string name="tab_tray_menu_home">Shko te kreu</string>
     <!-- Shortcut action to toggle private mode -->
     <string name="tab_tray_menu_toggle">Ndërroni mënyrë skedash</string>
+    <!-- Text shown in the multiselect menu for bookmarking selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_bookmark">Faqeruaji</string>
+    <!-- Text shown in the multiselect menu for closing selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_close">Mbylle</string>
+    <!-- Content description for tabs tray multiselect share button -->
+    <string name="tab_tray_multiselect_share_content_description">Nda skedat e përzgjedhura</string>
+    <!-- Content description for tabs tray multiselect menu -->
+    <string name="tab_tray_multiselect_menu_content_description">Menu skedash të përzgjedhura</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">Hiq skedë prej koleksionit</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Përzgjidhni skeda</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Mbylle skedën</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -965,6 +992,12 @@
     <string name="snackbar_tab_closed">Skeda u mbyll</string>
     <!-- Text shown in snackbar when user closes all tabs -->
     <string name="snackbar_tabs_closed">Skedat u mbyllën</string>
+    <!-- Text shown in snackbar when user closes tabs -->
+    <string name="snackbar_message_tabs_closed">Skedat u mbyllën!</string>
+    <!-- Text shown in snackbar when user bookmarks a list of tabs -->
+    <string name="snackbar_message_bookmarks_saved">Faqerojtësit u ruajtën! </string>
+    <!-- Text shown in snackbar action for viewing bookmarks -->
+    <string name="snackbar_message_bookmarks_view">Shihini</string>
     <!-- Text shown in snackbar when user adds a site to top sites -->
     <string name="snackbar_added_to_top_sites">U shtua te sajtet kryesuese!</string>
     <!-- Text shown in snackbar when user closes a private tab -->
diff --git a/app/src/main/res/values-su/strings.xml b/app/src/main/res/values-su/strings.xml
index 95e371705..1b26f7923 100644
--- a/app/src/main/res/values-su/strings.xml
+++ b/app/src/main/res/values-su/strings.xml
@@ -19,6 +19,10 @@
     <string name="no_open_tabs_description">Sakur tab anu muka bakal ditémbongkeun di dieu.</string>
     <!-- No Private Tabs Message Description -->
     <string name="no_private_tabs_description">Sakur tab pribadi anjeun bakal ditémbongkeun di dieu.</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 tab muka. Toél pikeun ngagilir tab.</string>
     <!-- Message announced to the user when tab tray is selected with 0 or 2+ tabs -->
@@ -90,6 +94,13 @@
     <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
     <string name="tab_tray_close_tabs_banner_negative_button_text">Tutup</string>
 
+    <!-- Text for the banner message to tell users about our grid view feature. -->
+    <string name="tab_tray_grid_view_banner_message">Ngarobah perenah tab anu maruka. Buka setélan tur pilih grid handapeun témbongan tab.</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">Buka setélan</string>
+    <!-- Text for the negative action button to dismiss the Close Tabs Banner. -->
+    <string name="tab_tray_grid_view_banner_negative_button_text">Tutup</string>
+
     <!-- Home screen icons - Long press shortcuts -->
     <!-- Shortcut action to open new tab -->
     <string name="home_screen_shortcut_open_new_tab_2">Tab anyar</string>
@@ -434,6 +445,10 @@
     <string name="preferences_marketing_data">Data pamasaran</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Bagikeun data ngeunaan fitur naon baé anu dipaké di %1$s ka Leanplum, péndor pamasaran ider kami.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Studi</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Ngidinan Mozilla masang jeung ngajalankeun studi</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Éksperimén</string>
     <!-- Summary for experiments preferences -->
@@ -586,6 +601,8 @@
     <string name="tab_tray_title">Buka Tab</string>
     <!-- Text shown in the menu for saving tabs to a collection -->
     <string name="tab_tray_menu_item_save">Simpen kana koléksi</string>
+    <!-- Text shown in the menu for the collection selector -->
+    <string name="tab_tray_menu_select">Pilih</string>
     <!-- Text shown in the menu for sharing all tabs -->
     <string name="tab_tray_menu_item_share">Bagikeun sadaya tab</string>
     <!-- Text shown in the menu to view recently closed tabs -->
@@ -600,8 +617,18 @@
     <string name="tab_tray_menu_home">Mulang</string>
     <!-- Shortcut action to toggle private mode -->
     <string name="tab_tray_menu_toggle">Mode tab pindah</string>
+    <!-- Text shown in the multiselect menu for bookmarking selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_bookmark">Markah</string>
+    <!-- Text shown in the multiselect menu for closing selected tabs. -->
+    <string name="tab_tray_multiselect_menu_item_close">Tutup</string>
+    <!-- Content description for tabs tray multiselect share button -->
+    <string name="tab_tray_multiselect_share_content_description">Bagikeun tab anu dipilih</string>
+    <!-- Content description for tabs tray multiselect menu -->
+    <string name="tab_tray_multiselect_menu_content_description">Menu tab anu dipilih</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">Cabut tab tina koléksi</string>
+    <!-- Text for button to enter multiselect mode in tabs tray -->
+    <string name="tabs_tray_select_tabs">Pilih tab</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab button. Closes the current session when pressed -->
     <string name="close_tab">Tutup tab</string>
     <!-- Content description (not visible, for screen readers etc.): Close tab <title> button. First parameter is tab title  -->
@@ -974,6 +1001,12 @@
     <string name="snackbar_tab_closed">Tab ditutup</string>
     <!-- Text shown in snackbar when user closes all tabs -->
     <string name="snackbar_tabs_closed">Tab ditutup</string>
+    <!-- Text shown in snackbar when user closes tabs -->
+    <string name="snackbar_message_tabs_closed">Tab ditutup!</string>
+    <!-- Text shown in snackbar when user bookmarks a list of tabs -->
+    <string name="snackbar_message_bookmarks_saved">Markah diteundeun!</string>
+    <!-- Text shown in snackbar action for viewing bookmarks -->
+    <string name="snackbar_message_bookmarks_view">Témbong</string>
     <!-- Text shown in snackbar when user adds a site to top sites -->
     <string name="snackbar_added_to_top_sites">Ditambahkeun kana loka kawentar!</string>
     <!-- Text shown in snackbar when user closes a private tab -->
diff --git a/app/src/main/res/values-sv-rSE/strings.xml b/app/src/main/res/values-sv-rSE/strings.xml
index 106df49c6..99eb04ad8 100644
--- a/app/src/main/res/values-sv-rSE/strings.xml
+++ b/app/src/main/res/values-sv-rSE/strings.xml
@@ -451,6 +451,10 @@
     <string name="preferences_marketing_data">Marknadsföringsdata</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Delar data om vilka funktioner du använder i %1$s med Leanplum, vår mobila marknadsföringsleverantör.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Undersökningar</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Tillåter Mozilla att installera och köra undersökningar</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Experiment</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index 67f8c93aa..1a1bb8235 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -444,6 +444,10 @@
     <string name="preferences_marketing_data">Pazarlama verileri</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Kullandığınız %1$s özellikleri ile ilgili verileri mobil pazarlama hizmeti aldığımız Leanplum ile paylaşır.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Araştırmalar</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Mozilla’nın araştırmalar yükleyip çalıştırmasına izin verir</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Deneyler</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 7181e8667..75cd63a8b 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -449,6 +449,10 @@
     <string name="preferences_marketing_data">Маркетингові дані</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Надсилання даних про функції, які ви використовуєте в %1$s, нашій компанії з мобільного маркетингу Leanplum.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Дослідження</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Дозволяє Mozilla встановлювати та запускати дослідження</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Експерименти</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-vi/strings.xml b/app/src/main/res/values-vi/strings.xml
index e35dcce4f..cf5cf4b56 100644
--- a/app/src/main/res/values-vi/strings.xml
+++ b/app/src/main/res/values-vi/strings.xml
@@ -442,6 +442,10 @@
     <string name="preferences_marketing_data">Dữ liệu tiếp thị</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">Chia sẻ dữ liệu về những tính năng bạn sử dụng trong %1$s với Leanplum, nhà cung cấp tiếp thị di động của chúng tôi.</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">Nghiên cứu</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">Cho phép Mozilla cài đặt và chạy các nghiên cứu</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">Thử nghiệm</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index d12e2f687..ab0c00b9f 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -456,6 +456,10 @@
     <string name="preferences_marketing_data">营销数据</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">与我们的移动营销供应商 Leanplum 分享您使用 %1$s 的哪些功能。</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">研究</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">允许 Mozilla 安装和运行研究</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">实验</string>
     <!-- Summary for experiments preferences -->
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 464fee941..e755167b6 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -451,6 +451,10 @@
     <string name="preferences_marketing_data">行銷資料</string>
     <!-- Preference description for marketing data collection, parameter is the app name (e.g. Firefox) -->
     <string name="preferences_marketing_data_description">與我們的行動行銷服務供應商 Leanplum 分享您在 %1$s 使用了哪些功能。</string>
+    <!-- Title for studies preferences -->
+    <string name="preference_experiments_2">使用者研究</string>
+    <!-- Summary for studies preferences -->
+    <string name="preference_experiments_summary_2">允許 Mozilla 安裝執行使用者研究</string>
     <!-- Title for experiments preferences -->
     <string name="preference_experiments">實驗</string>
     <!-- Summary for experiments preferences -->
diff --git a/l10n.toml b/l10n.toml
index 840b4e636..077ea1753 100644
--- a/l10n.toml
+++ b/l10n.toml
@@ -58,6 +58,7 @@ locales = [
   "lij",
   "lo",
   "lt",
+  "mix",
   "ml",
   "mr",
   "ms",