Bug 1254866 - ReferenceError: Cu is not defined in ext-i18n.js, r=kmag

MozReview-Commit-ID: 9LCxyoSWheT

toolkit/components/extensions/ext-i18n.js

@@ -1,5 +1,7 @@
 "use strict";
 
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
 Cu.import("resource://gre/modules/ExtensionUtils.jsm");
 var {
   detectLanguage,