#0  0x00002b0e9f9ce0a0 in raise () from /lib/libpthread.so.0
#1  0x000000000040f9f6 in ?? ()
#2  <signal handler called>
#3  0x00002b0e9edec79b in JS_SetPrivate () from /usr/lib/firefox/libmozjs.so
#4  0x00002aaaaaaeb391 in ?? ()
   from /usr/lib/firefox/components/libxpconnect.so
#5  0x00002b0e9ee3311d in ?? () from /usr/lib/firefox/libmozjs.so
#6  0x00002b0e9ee1642f in ?? () from /usr/lib/firefox/libmozjs.so
#7  0x00002b0e9edede9a in JS_GC () from /usr/lib/firefox/libmozjs.so
#8  0x00002aaaacc22649 in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#9  0x00002aaaacc2199f in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#10 0x00002aaaacbff7e1 in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#11 0x00002aaaacc08161 in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#12 0x00002aaaacc08e7e in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#13 0x00002aaaacc095fa in ?? ()
   from /usr/lib/firefox/components/libgklayout.so
#14 0x00002b0e9f331b0c in XPTC_InvokeByIndex ()
   from /usr/lib/firefox/libxpcom_core.so
#15 0x00002b0e9f31fe95 in ?? () from /usr/lib/firefox/libxpcom_core.so
#16 0x00002b0e9f31a059 in PL_HandleEvent ()
   from /usr/lib/firefox/libxpcom_core.so
#17 0x00002b0e9f31a2fb in PL_ProcessPendingEvents ()
   from /usr/lib/firefox/libxpcom_core.so
#18 0x00002b0e9f31be4b in ?? () from /usr/lib/firefox/libxpcom_core.so
#19 0x00002aaaaaf48782 in ?? ()
   from /usr/lib/firefox/components/libwidget_gtk2.so
#20 0x00002b0ea22f9a14 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#21 0x00002b0ea22fc85d in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00002b0ea22fcb6a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#23 0x00002b0e9fd1d023 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00002aaaaaf48b1c in ?? ()
   from /usr/lib/firefox/components/libwidget_gtk2.so
#25 0x00002aaaabc301ee in ?? ()
   from /usr/lib/firefox/components/libtoolkitcomps.so
#26 0x000000000040838b in ?? ()
#27 0x00002b0ea0a398e4 in __libc_start_main () from /lib/libc.so.6
#28 0x0000000000403889 in ?? ()
#29 0x00007fff0bef5918 in ?? ()
#30 0x0000000000000000 in ?? ()