Well, can you suggest a way to get a stacktrace at the point where the assertion fails? Since it does not crash, apport won't work. However I can add debugging code to gnome-session if necessary.
(BTW, the Firefox hang was probably a red herring. It has happened since without any interaction with FF. That instance of gnome-session is not still running, but the bug happens once every few days or weeks.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743761 Title: Gnome reverts partially to default theme and fonts; "gnome- session[...]: GLib-GObject-CRITICAL: g_object_unref: assertion `G_IS_OBJECT (object)' failed" in syslog -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs