The following assertions sometimes fail:
(firefox:25759): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
The following assertions sometimes fail:
(firefox:25759): GLib-GObject- CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
(firefox:25759): GLib-GObject- CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
(firefox:25759): GLib-GObject- CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed