Bug 1114752 - Uplift Add-on SDK to Firefox a=me

addon-sdk/source/lib/sdk/window/utils.js

@@ -25,8 +25,9 @@ const FM = Cc["@mozilla.org/focus-manager;1"].
 
 const XUL_NS = 'http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul';
 
+const prefs = require("../preferences/service");
 const BROWSER = 'navigator:browser',
-      URI_BROWSER = 'chrome://browser/content/browser.xul',
+      URI_BROWSER = prefs.get('browser.chromeURL', null),
       NAME = '_blank',
       FEATURES = 'chrome,all,dialog=no,non-private';
 
@@ -186,6 +187,9 @@ function open(uri, options) {
   uri = uri || URI_BROWSER;
   options = options || {};
 
+  if (!uri)
+    throw new Error('browser.chromeURL is undefined, please provide an explicit uri');
+
   if (['chrome', 'resource', 'data'].indexOf(io.newURI(uri, null, null).scheme) < 0)
     throw new Error('only chrome, resource and data uris are allowed');