--- a/mobile/android/base/locales/en-US/android_strings.dtd
+++ b/mobile/android/base/locales/en-US/android_strings.dtd
@@ -490,18 +490,28 @@
 <!ENTITY contextmenu_paste "Paste">
 <!ENTITY contextmenu_copyurl "Copy Address">
 <!ENTITY contextmenu_edit_bookmark "Edit">
 <!ENTITY contextmenu_subscribe "Subscribe to Page">
 <!ENTITY contextmenu_site_settings "Edit Site Settings">
 <!ENTITY contextmenu_top_sites_edit "Edit">
 <!ENTITY contextmenu_top_sites_pin "Pin Site">
 <!ENTITY contextmenu_top_sites_unpin "Unpin Site">
+<!-- Localization note (contextmenu_pin_to_top_sites, contextmenu_unpin_from_top_sites): These strings are used to
+     pin/unpin items from top sites when the user is not on the top sites screen so they'd be missing context on what
+     just "Pin Site" or "Unpin Site" would mean. -->
+<!ENTITY contextmenu_pin_to_top_sites "Pin to Top Sites">
+<!ENTITY contextmenu_unpin_from_top_sites "Unpin from Top Sites">
 <!ENTITY contextmenu_add_search_engine "Add a Search Engine">
 
+<!-- Localization note (pinned_page_to_top_sites, unpinned_page_from_top_sites): These strings are shown in a snackbar
+     after the user pins/unpins the currently displayed page from top sites. -->
+<!ENTITY pinned_page_to_top_sites "Pinned page to Top Sites">
+<!ENTITY unpinned_page_from_top_sites "Unpinned page from Top Sites">
+
 <!-- Localization note (doorhanger_login_no_username): This string is used in the save-login doorhanger
      where normally a username would be displayed. In this case, no username was found, and this placeholder
      contains brackets to indicate this is not actually a username, but rather a placeholder -->
 <!ENTITY doorhanger_login_no_username "[No username]">
 <!ENTITY doorhanger_login_edit_title "Edit login">
 <!ENTITY doorhanger_login_edit_username_hint "Username">
 <!ENTITY doorhanger_login_edit_password_hint "Password">
 <!ENTITY doorhanger_login_edit_toggle "Show password">

--- a/mobile/android/base/strings.xml.in
+++ b/mobile/android/base/strings.xml.in
@@ -389,18 +389,23 @@
   <string name="contextmenu_paste">&contextmenu_paste;</string>
   <string name="contextmenu_copyurl">&contextmenu_copyurl;</string>
   <string name="contextmenu_edit_bookmark">&contextmenu_edit_bookmark;</string>
   <string name="contextmenu_subscribe">&contextmenu_subscribe;</string>
   <string name="contextmenu_site_settings">&contextmenu_site_settings;</string>
   <string name="contextmenu_top_sites_edit">&contextmenu_top_sites_edit;</string>
   <string name="contextmenu_top_sites_pin">&contextmenu_top_sites_pin;</string>
   <string name="contextmenu_top_sites_unpin">&contextmenu_top_sites_unpin;</string>
+  <string name="contextmenu_pin_to_top_sites">&contextmenu_pin_to_top_sites;</string>
+  <string name="contextmenu_unpin_from_top_sites">&contextmenu_unpin_from_top_sites;</string>
   <string name="contextmenu_add_search_engine">&contextmenu_add_search_engine;</string>
 
+  <string name="pinned_page_to_top_sites">&pinned_page_to_top_sites;</string>
+  <string name="unpinned_page_from_top_sites">&unpinned_page_from_top_sites;</string>
+
   <string name="doorhanger_login_no_username">&doorhanger_login_no_username;</string>
   <string name="doorhanger_login_edit_title">&doorhanger_login_edit_title;</string>
   <string name="doorhanger_login_edit_username_hint">&doorhanger_login_edit_username_hint;</string>
   <string name="doorhanger_login_edit_password_hint">&doorhanger_login_edit_password_hint;</string>
   <string name="doorhanger_login_edit_toggle">&doorhanger_login_edit_toggle;</string>
   <string name="doorhanger_login_select_message">&doorhanger_login_select_message;</string>
   <string name="doorhanger_login_select_toast_copy">&doorhanger_login_select_toast_copy;</string>
   <string name="doorhanger_login_select_action_text">&doorhanger_login_select_action_text;</string>