It seems to be due to the New Mail Icon add-on (running 1.2.4). When running in gdb:
(gecko:12242): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWidget' (gecko:12242): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed (gecko:12242): Gdk-CRITICAL **: gdk_x11_display_get_xdisplay: assertion `GDK_IS_DISPLAY (display)' failed Program received signal SIGSEGV, Segmentation fault. 0x00007ffff44693ab in XGetWindowProperty () from /usr/lib/libX11.so.6 (gdb) bt #0 0x00007ffff44693ab in XGetWindowProperty () from /usr/lib/libX11.so.6 #1 0x00007fffe0878d10 in ?? () from /home/mol/.mozilla-thunderbird/r2x0mndp.default/extensions/{2e1b75f1-6b5a-4f1d-89b4-424f636e4fba}/components/libtraybiff.so #2 0x00007fffe0878fc5 in ?? () from /home/mol/.mozilla-thunderbird/r2x0mndp.default/extensions/{2e1b75f1-6b5a-4f1d-89b4-424f636e4fba}/components/libtraybiff.so #3 0x00007ffff637fec3 in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #4 0x00007ffff63816d8 in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #5 0x00007ffff6381b1e in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #6 0x00007ffff47b3bbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #7 0x00007ffff47b7588 in ?? () from /lib/libglib-2.0.so.0 #8 0x00007ffff47b79e5 in g_main_loop_run () from /lib/libglib-2.0.so.0 #9 0x00007ffff670cfc7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #10 0x00007fffe880eb00 in nsAppShell::Run (this=0x7f5750) at nsAppShell.cpp:139 #11 0x00007fffe791d05e in nsAppStartup::Run (this=0x7f56d0) at nsAppStartup.cpp:151 #12 0x0000000000408c9e in XRE_main (argc=<value optimized out>, argv=<value optimized out>, aAppData=<value optimized out>) at nsAppRunner.cpp:2817 #13 0x00007ffff373dabd in __libc_start_main () from /lib/libc.so.6 #14 0x00000000004039e9 in _start () at ../sysdeps/x86_64/elf/start.S:113 (gdb) Is a bug report for that addon valid here? -- thunderbird-bin crashed with SIGSEGV in XGetWindowProperty() https://bugs.launchpad.net/bugs/438590 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs