Global Object created in CentralizedAdminPrefManagerInit needs its own compartment (bug 590325, r=mrbkap).

extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp

@@ -160,8 +160,11 @@ nsresult CentralizedAdminPrefManagerInit()
         static_cast<nsIXPCSecurityManager*>(new AutoConfigSecMan());
     xpc->SetSecurityManagerForJSContext(autoconfig_cx, secman, 0);
 
-    autoconfig_glob = JS_NewGlobalObject(autoconfig_cx, &global_class);
+    autoconfig_glob = JS_NewGlobalObjectAndCompartment(autoconfig_cx, &global_class, NULL);
     if (autoconfig_glob) {
+        JSAutoEnterCompartment ac;
+        if(!ac.enter(ccx, autoconfig_glob))
+            return NS_ERROR_FAILURE;
         if (JS_InitStandardClasses(autoconfig_cx, autoconfig_glob)) {
             // XPCONNECT enable this JS context
             rv = xpc->InitClasses(autoconfig_cx, autoconfig_glob);