#0  0x00002b3fdc94e0a0 in raise () from /lib/libpthread.so.0
#1  0x000000000040f9f6 in ?? ()
#2  <signal handler called>
#3  0x00002b3fdcd07d0c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x00002b3fdcd0c068 in gtk_style_attach ()
   from /usr/lib/libgtk-x11-2.0.so.0
#5  0x00002b3fdcda4e9d in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#6  0x00002b3fdcda4fb7 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x00002aaaaaf3e527 in ?? ()
   from /usr/lib/firefox/components/libwidget_gtk2.so
#8  0x00002b3fdccdf6b4 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#9  0x00002b3fdcc6f9b1 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#10 0x00002b3fdf279794 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#11 0x00002b3fdf27c5dd in ?? () from /usr/lib/libglib-2.0.so.0
#12 0x00002b3fdf27c8ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#13 0x00002b3fdcc9cfa3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x00002aaaaaf48b1c in ?? ()
   from /usr/lib/firefox/components/libwidget_gtk2.so
#15 0x00002aaaabc4b1ee in ?? ()
   from /usr/lib/firefox/components/libtoolkitcomps.so
#16 0x000000000040838b in ?? ()
#17 0x00002b3fdd9b98e4 in __libc_start_main () from /lib/libc.so.6
#18 0x0000000000403889 in ?? ()
#19 0x00007fffcef78998 in ?? ()
#20 0x0000000000000000 in ?? ()