--- a/browser/base/content/test/static/browser_all_files_referenced.js
+++ b/browser/base/content/test/static/browser_all_files_referenced.js
@@ -52,18 +52,16 @@ var whitelist = new Set([
   {file: "chrome://global/locale/printPreviewProgress.dtd",
    platforms: ["macosx"]},
   {file: "chrome://global/locale/printProgress.dtd", platforms: ["macosx"]},
   {file: "chrome://global/locale/printdialog.dtd",
    platforms: ["macosx", "win"]},
   {file: "chrome://global/locale/printjoboptions.dtd",
    platforms: ["macosx", "win"]},
 
-  {file: "chrome://weave/locale/errors.properties"},
-
   // devtools/client/inspector/bin/dev-server.js
   {file: "chrome://devtools/content/inspector/markup/markup.xhtml",
    isFromDevTools: true},
 
   // extensions/pref/autoconfig/src/nsReadConfig.cpp
   {file: "resource://gre/defaults/autoconfig/prefcalls.js"},
 
   // modules/libpref/Preferences.cpp

deleted file mode 100644
--- a/services/sync/locales/en-US/errors.properties
+++ /dev/null
@@ -1,27 +0,0 @@
-# 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/.
-
-error.login.reason.network      = Failed to connect to the server
-error.login.reason.recoverykey  = Wrong Recovery Key
-error.login.reason.account      = Incorrect account name or password
-error.login.reason.no_username  = Missing account name
-error.login.reason.no_password2 = Missing password
-error.login.reason.no_recoverykey= No saved Recovery Key to use
-error.login.reason.server       = Server incorrectly configured
-
-error.sync.failed_partial            = One or more data types could not be synced
-# LOCALIZATION NOTE (error.sync.reason.serverMaintenance): We removed the extraneous period from this string
-error.sync.reason.serverMaintenance  = Firefox Sync server maintenance is underway, syncing will resume automatically
-
-invalid-captcha = Incorrect words, try again
-weak-password   = Use a stronger password
-
-# this is the fallback, if we hit an error we didn't bother to localize
-error.reason.unknown          = Unknown error
-
-change.password.pwSameAsPassword     = Password can’t match current password
-change.password.pwSameAsUsername     = Password can’t match your user name
-change.password.pwSameAsEmail        = Password can’t match your email address
-change.password.mismatch             = The passwords entered do not match
-change.password.tooShort             = The password entered is too short

--- a/services/sync/locales/jar.mn
+++ b/services/sync/locales/jar.mn
@@ -1,10 +1,9 @@
 #filter substitution
 # 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/.
 
 
 @AB_CD@.jar:
 % locale weave @AB_CD@ %locale/@AB_CD@/services/
-  locale/@AB_CD@/services/errors.properties  (%errors.properties)
   locale/@AB_CD@/services/sync.properties    (%sync.properties)