.
Thread 3 (Thread 6203):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
No locals.
#1  0x00007fd5a6e1e689 in ?? () from /usr/lib/libnspr4.so
#2  0x00007fd5a6e1f27c in PR_WaitCondVar () from /usr/lib/libnspr4.so
#3  0x00007fd5a5e3a5de in ?? () from /usr/lib/xulrunner-1.9.1.2/libxul.so
#4  0x00007fd5a6e24e3a in ?? () from /usr/lib/libnspr4.so
#5  0x00007fd5a8d07a04 in start_thread (arg=<value optimized out>)
    at pthread_create.c:300
        __res = <value optimized out>
        pd = 0x7fd5991ed910
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140555373697296, 
                2721389632484219101, 140733576650944, 140555373697296, 0, 3, 
                -2706835662718953251, -2706943943979624227}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, 
            data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <value optimized out>
        robust = <value optimized out>
#6  0x00007fd5a7dde64d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#7  0x0000000000000000 in ?? ()
.
Thread 2 (Thread 9855):
#0  0x00007fd5a7dd2203 in *__GI___poll (fds=<value optimized out>, 
    nfds=<value optimized out>, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:87
        _a3 = -1
        _a1 = 140554894261264
        resultvar = <value optimized out>
        _a2 = 1
        oldtype = 0
        result = <value optimized out>
#1  0x00007fd5a6e20cff in ?? () from /usr/lib/libnspr4.so
#2  0x00007fd5a6e26b64 in ?? () from /usr/lib/libnspr4.so
#3  0x00007fd5a6e24e3a in ?? () from /usr/lib/libnspr4.so
#4  0x00007fd5a8d07a04 in start_thread (arg=<value optimized out>)
    at pthread_create.c:300
        __res = <value optimized out>
        pd = 0x7fd57c8b4910
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140554894264592, 
                2721389632484219101, 140733576640880, 0, 4, 7, 
                -2707041173145970467, -2706943943979624227}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, 
            data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <value optimized out>
        robust = <value optimized out>
#5  0x00007fd5a7dde64d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#6  0x0000000000000000 in ?? ()
Current language:  auto; currently asm
.
Thread 1 (Thread 6201):
#0  0x00007fd5a8d1005b in raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:42
No locals.
#1  0x00007fd5a5e21c80 in ?? () from /usr/lib/xulrunner-1.9.1.2/libxul.so
#2  <signal handler called>
#3  0x00007fd5a3620d08 in g_type_check_instance ()
   from /usr/lib/libgobject-2.0.so.0
#4  0x00007fd5a361fc1b in g_signal_handlers_disconnect_matched ()
   from /usr/lib/libgobject-2.0.so.0
#5  0x00007fd58ccb5323 in ?? ()
   from /usr/lib/gtk-2.0/2.10.0/immodules/im-xim.so
#6  0x00007fd58ccb53bb in ?? ()
   from /usr/lib/gtk-2.0/2.10.0/immodules/im-xim.so
#7  0x00007fd5a360767e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#8  0x00007fd5a361d896 in ?? () from /usr/lib/libgobject-2.0.so.0
#9  0x00007fd5a361ecde in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x00007fd5a361f263 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#11 0x00007fd5a21ada92 in gdk_display_close ()
   from /usr/lib/libgdk-x11-2.0.so.0
#12 0x00007fd5a5e197dc in ?? () from /usr/lib/xulrunner-1.9.1.2/libxul.so
#13 0x00007fd5a5e1d949 in XRE_main ()
   from /usr/lib/xulrunner-1.9.1.2/libxul.so
#14 0x000000000040265f in ?? ()
#15 0x00007fd5a7d1dabd in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff16d873d8)
    at libc-start.c:220
        result = <value optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 2721389632484219101, 
                4202160, 140733576672224, 0, 0, -2721725847201965859, 
                -2706910970322151203}, mask_was_saved = 0}}, priv = {pad = {
              0x0, 0x0, 0x410b00, 0x7fff16d873e8}, data = {prev = 0x0, 
              cleanup = 0x0, canceltype = 4262656}}}
        not_first_call = <value optimized out>
#16 0x0000000000401ed9 in ?? ()
#17 0x00007fff16d873d8 in ?? ()
#18 0x000000000000001c in ?? ()
#19 0x0000000000000007 in ?? ()
#20 0x00007fff16d877f7 in ?? ()
#21 0x00007fff16d87816 in ?? ()
#22 0x00007fff16d87829 in ?? ()
#23 0x00007fff16d8783a in ?? ()
#24 0x00007fff16d87849 in ?? ()
#25 0x0000000000000000 in ?? ()
Current language:  auto; currently c