--- a/mobile/android/base/locales/en-US/android_strings.dtd
+++ b/mobile/android/base/locales/en-US/android_strings.dtd
@@ -257,16 +257,20 @@
      text of a notification; we expect only one tab queued. -->
 <!ENTITY tab_queue_notification_text_singular2 "1 tab waiting">
 
 <!-- Localization note (tab_queue_notification_settings): This notification text is shown if a tab
      has been queued but we are missing the system permission to show an overlay. -->
 <!ENTITY tab_queue_notification_settings "To \&quot;Open multiple links\&quot;, please enable the \'Draw over other apps\' permission for &brandShortName;">
 
 <!ENTITY content_notification_summary "&brandShortName;">
+<!-- Localization note (content_notification_title_plural): &formatD; will be replaced with the number of websites that
+     have been updated (new content is available). The number of websites is always more than one (>= 2). For a single
+     update the website title is used instead of this string.
+     We can't use Android plural forms, sadly. See Bug #753859. -->
 <!ENTITY content_notification_title_plural "&formatD; websites updated">
 <!ENTITY content_notification_action_settings "Notifications Setting">
 <!-- Localization note (content_notification_updated_on): &formatS; will be replaced with a medium sized version of the
      date, depending on locale. For en_US this is for example: Feb 24, 2016. For more details see the Android developer
      documentation for DateFormat.getMediumDateFormat(). -->
 <!ENTITY content_notification_updated_on "Updated on &formatS;">
 
 <!ENTITY pref_char_encoding "Character encoding">