#0  0x00002b4ad85befcb in raise () from /lib/libpthread.so.0
#1  0x00002b4ad0e248c6 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#2  <signal handler called>
#3  0x00002b4ad473cc47 in gdk_window_get_toplevel ()
   from /usr/lib/libgdk-x11-2.0.so.0
#4  0x00002b4ad473cc79 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#5  0x00002b4ad473ce9d in gdk_window_process_all_updates ()
   from /usr/lib/libgdk-x11-2.0.so.0
#6  0x00002b4ad473cf09 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#7  0x00002b4ad472431e in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#8  0x00002b4ad8e49fd3 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#9  0x00002b4ad8e4d2dd in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00002b4ad8e4d5ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#11 0x00002b4ad427c883 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#12 0x000000000044021e in main ()