--- a/mobile/android/base/locales/en-US/android_strings.dtd
+++ b/mobile/android/base/locales/en-US/android_strings.dtd
@@ -382,16 +382,18 @@ size. -->
 
 <!ENTITY pref_use_master_password "Use master password">
 <!ENTITY pref_sync2 "Sign in">
 <!ENTITY pref_sync_summary2 "Sync your tabs, bookmarks, logins, history">
 <!ENTITY pref_search_suggestions "Show search suggestions">
 <!ENTITY pref_history_search_suggestions "Show search history">
 <!ENTITY pref_import_options "Import options">
 <!ENTITY pref_import_android_summary "Import bookmarks and history from the native browser">
+<!-- Localization note (pref_private_data_openTabs): Open tabs is an option in
+     the Clear Private Data  dialog and refers to currently open tabs. -->
 <!ENTITY pref_private_data_openTabs "Open tabs">
 <!ENTITY pref_private_data_history2 "Browsing history">
 <!ENTITY pref_private_data_searchHistory "Search history">
 <!ENTITY pref_private_data_formdata2 "Form history">
 <!ENTITY pref_private_data_cookies2 "Cookies &amp; active logins">
 <!ENTITY pref_private_data_passwords2 "Saved logins">
 <!ENTITY pref_private_data_cache "Cache">
 <!ENTITY pref_private_data_offlineApps "Offline website data">