i have the same problem since updating my ubuntu today:
#:~$ mozilla-thunderbird GTK Accessibility Module initialized DOUBLE-CLICK: 400 --> -1 THRESHOLD: 8 --> -1 (Gecko:9799): GLib-GObject-WARNING **: gsignal.c:1019: unable to lookup signal "activate" of unloaded type `MaiAtkObject'
(Gecko:9799): GLib-GObject-CRITICAL **: g_signal_emit_valist: assertion `signal_id > 0' failed Segmentation fault (core dumped)
see also: https://bugzilla.mozilla.org/show_bug.cgi?id=369999
i have the same problem since updating my ubuntu today:
#:~$ mozilla-thunderbird WARNING **: gsignal.c:1019: unable to lookup signal
GTK Accessibility Module initialized
DOUBLE-CLICK: 400 --> -1 THRESHOLD: 8 --> -1
(Gecko:9799): GLib-GObject-
"activate" of unloaded type `MaiAtkObject'
(Gecko:9799): GLib-GObject- CRITICAL **: g_signal_ emit_valist: assertion
`signal_id > 0' failed
Segmentation fault (core dumped)
see also: https:/ /bugzilla. mozilla. org/show_ bug.cgi? id=369999