#0  0x00007fe686c3769b in raise () from /lib/libpthread.so.0
#1  0x00007fe6843f44b2 in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#2  <signal handler called>
#3  0x00007fe685a80876 in ?? () from /usr/lib/xulrunner-1.9b5/libmozjs.so
#4  0x00007fe685a18fcc in JS_GetStringBytes ()
   from /usr/lib/xulrunner-1.9b5/libmozjs.so
#5  0x00007fe6849f5e18 in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#6  0x00007fe6849f6e64 in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#7  0x00007fe6849f5eee in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#8  0x00007fe684b85239 in NS_InvokeByIndex_P ()
   from /usr/lib/xulrunner-1.9b5/libxul.so
#9  0x00007fe684416541 in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#10 0x00007fe68441c1c8 in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#11 0x00007fe685a4e52d in js_Invoke ()
   from /usr/lib/xulrunner-1.9b5/libmozjs.so
#12 0x00007fe685a402c5 in ?? () from /usr/lib/xulrunner-1.9b5/libmozjs.so
#13 0x00007fe685a4e58c in js_Invoke ()
   from /usr/lib/xulrunner-1.9b5/libmozjs.so
#14 0x00007fe684413b3b in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#15 0x00007fe684b85e4a in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#16 0x00007fe684b8531b in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so
#17 0x000000000125bdc0 in ?? ()
#18 0x0000000003112f50 in ?? ()
#19 0x0000000000000001 in ?? ()
#20 0x00007fff8f05d170 in ?? ()
#21 0x00007fff8f05d170 in ?? ()
#22 0x0000000000000000 in ?? ()