ok. got the bloody thing to start via: /usr/bin/thunderbird -safe-mode
and deleting add-ons; still get: (process:28133): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed But I don't really care anymore. Anyway, hope this helps someone... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1160569 Title: GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0' failed To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1160569/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs