Issue 3199 - "Firefox" string is displayed on several error messages

mobile/android/base/locales/en-US/sync_strings.dtd

 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 <!-- Don't localize these. They're here until they have
      a better place to live. -->
 <!ENTITY syncBrand.fullName.label "Firefox Sync">
 <!ENTITY syncBrand.shortName.label "Sync">
 
 <!-- Main titles. -->
@@ skipping 230 matching lines @@
      when the user navigates to the Android > Accounts > {Firefox
      Account} Screen. The link takes the user to the Firefox Account
      status activity, which lets them manage their Firefox
      Account. -->
 <!ENTITY fxaccount_options_title '&syncBrand.shortName.label; Options'>
 <!ENTITY fxaccount_options_configure_title 'Configure &syncBrand.shortName.label;'>
 
 <!-- Localization note: these error messages are shown after a request
      has been made to the remote server, and an error of some type has
      been returned. -->
-<!ENTITY fxaccount_remote_error_UPGRADE_REQUIRED 'You need to upgrade Firefox'>
+<!ENTITY fxaccount_remote_error_UPGRADE_REQUIRED 'You need to upgrade Adblock Browser'>
 
 <!-- Localization note: the format string will be fxaccount_sign_in_button_label, linkified. -->
 <!ENTITY fxaccount_remote_error_ATTEMPT_TO_CREATE_AN_ACCOUNT_THAT_ALREADY_EXISTS_2 'Account already exists. &formatS1;'>
 <!ENTITY fxaccount_remote_error_ATTEMPT_TO_ACCESS_AN_ACCOUNT_THAT_DOES_NOT_EXIST 'Invalid email or password'>
 <!ENTITY fxaccount_remote_error_INCORRECT_PASSWORD 'Invalid email or password'>
 <!ENTITY fxaccount_remote_error_ATTEMPT_TO_OPERATE_ON_AN_UNVERIFIED_ACCOUNT 'Account is not verified'>
 <!ENTITY fxaccount_remote_error_CLIENT_HAS_SENT_TOO_MANY_REQUESTS 'Server busy, try again soon'>
 <!ENTITY fxaccount_remote_error_SERVICE_TEMPORARILY_UNAVAILABLE_TO_DUE_HIGH_LOAD 'Server busy, try again soon'>
 <!ENTITY fxaccount_remote_error_UNKNOWN_ERROR 'There was a problem'>
 <!ENTITY fxaccount_remote_error_COULD_NOT_CONNECT 'Cannot connect to network'>
 <!ENTITY fxaccount_remote_error_ACCOUNT_LOCKED 'Account is locked. &formatS1;'>
 
 <!ENTITY fxaccount_sync_sign_in_error_notification_title2 '&syncBrand.shortName.label; is not connected'>
 <!-- Localization note: the format string below will be replaced
      with the Firefox Account's email address. -->
 <!ENTITY fxaccount_sync_sign_in_error_notification_text2 'Tap to sign in as &formatS;'>
 
 <!ENTITY fxaccount_sync_finish_migrating_notification_title 'Finish upgrading &syncBrand.shortName.label;?'>
 <!-- Localization note: the format string below will be replaced
      with the Firefox Account's email address. -->
 <!ENTITY fxaccount_sync_finish_migrating_notification_text 'Tap to sign in as &formatS;'>