diff --git a/js/xpconnect/loader/mozJSComponentLoader.cpp b/js/xpconnect/loader/mozJSComponentLoader.cpp
index b6a5811b753..09723284d76 100644
--- a/js/xpconnect/loader/mozJSComponentLoader.cpp
+++ b/js/xpconnect/loader/mozJSComponentLoader.cpp
@@ -670,10 +670,6 @@ mozJSComponentLoader::GlobalForLocation(nsILocalFile *aComponentFile,
         do_GetService(kXPConnectServiceContractID, &rv);
     NS_ENSURE_SUCCESS(rv, rv);
 
-    // Make sure InitClassesWithNewWrappedGlobal() installs the
-    // backstage pass as the global in our compilation context.
-    JS_SetGlobalObject(cx, nsnull);
-
     nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
     rv = xpc->InitClassesWithNewWrappedGlobal(cx, backstagePass,
                                               mSystemPrincipal,