Me too, using yelp 2.14.0 : Thread 7 (Thread 1124096352 (LWP 5644)): #0 0x00002aaab0197c8f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002aaaaff73c0d in PR_Lock () from /usr/lib/libnspr4.so #2 0x00002aaaaff73f7d in PR_WaitCondVar () from /usr/lib/libnspr4.so #3 0x00002aaab1e834bf in NSGetModule () from /usr/lib/firefox/components/libnecko.so #4 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #5 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 #6 0x00002aaab06eed32 in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 6 (Thread 1115703648 (LWP 5643)): #0 0x00002aaab0197c8f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002aaaaff73c0d in PR_Lock () from /usr/lib/libnspr4.so #2 0x00002aaaaff73f7d in PR_WaitCondVar () from /usr/lib/libnspr4.so #3 0x00002aaab1e834bf in NSGetModule () from /usr/lib/firefox/components/libnecko.so #4 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #5 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 #6 0x00002aaab06eed32 in clone () from /lib/libc.so.6 ---Type to continue, or q to quit--- #7 0x0000000000000000 in ?? () Thread 5 (Thread 1107310944 (LWP 5642)): #0 0x00002aaab0197c8f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002aaaaff73c0d in PR_Lock () from /usr/lib/libnspr4.so #2 0x00002aaaaff73f7d in PR_WaitCondVar () from /usr/lib/libnspr4.so #3 0x00002aaab1e834bf in NSGetModule () from /usr/lib/firefox/components/libnecko.so #4 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #5 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 #6 0x00002aaab06eed32 in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 4 (Thread 1098918240 (LWP 5641)): #0 0x00002aaab0197c8f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002aaaaff73c0d in PR_Lock () from /usr/lib/libnspr4.so #2 0x00002aaaaff73f7d in PR_WaitCondVar () from /usr/lib/libnspr4.so #3 0x00002aaab1e834bf in NSGetModule () from /usr/lib/firefox/components/libnecko.so #4 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #5 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 ---Type to continue, or q to quit--- #6 0x00002aaab06eed32 in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 3 (Thread 1090525536 (LWP 5637)): #0 0x00002aaab0197c8f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00002aaaaff73c0d in PR_Lock () from /usr/lib/libnspr4.so #2 0x00002aaaaff73f7d in PR_WaitCondVar () from /usr/lib/libnspr4.so #3 0x00002aaab09efb20 in NS_NewThread () from /usr/lib/firefox/libxpcom_core.so #4 0x00002aaab09ed7ac in nsIThread::IsMainThread () from /usr/lib/firefox/libxpcom_core.so #5 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #6 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 #7 0x00002aaab06eed32 in clone () from /lib/libc.so.6 #8 0x0000000000000000 in ?? () Thread 2 (Thread 1082132832 (LWP 5634)): #0 0x00002aaab06e5e72 in poll () from /lib/libc.so.6 #1 0x00002aaaaff778df in PR_Poll () from /usr/lib/libnspr4.so #2 0x00002aaab1ea45d0 in NSGetModule () from /usr/lib/firefox/components/libnecko.so #3 0x00002aaab1ea4d23 in NSGetModule () ---Type to continue, or q to quit--- from /usr/lib/firefox/components/libnecko.so #4 0x00002aaab09ed7ac in nsIThread::IsMainThread () from /usr/lib/firefox/libxpcom_core.so #5 0x00002aaaaff78e9c in PR_Select () from /usr/lib/libnspr4.so #6 0x00002aaab01950fa in start_thread () from /lib/libpthread.so.0 #7 0x00002aaab06eed32 in clone () from /lib/libc.so.6 #8 0x0000000000000000 in ?? () Thread 1 (Thread 46912600544848 (LWP 5629)): #0 0x00002aaaae4c5a78 in CORBA_free () from /usr/lib/libORBit-2.so.0 #1 0x00002aaaae4c59b9 in ORBit_free_T () from /usr/lib/libORBit-2.so.0 #2 0x00002aaaae4c59fd in ORBit_free () from /usr/lib/libORBit-2.so.0 #3 0x00002aaab5122fd9 in gnome_accessibility_module_shutdown () from /usr/lib/gtk-2.0/modules/libatk-bridge.so #4 0x00002aaab5123773 in gnome_accessibility_module_shutdown () from /usr/lib/gtk-2.0/modules/libatk-bridge.so #5 0x00002aaaae6197fd in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0 #6 0x00002aaaae61afcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #7 0x00002aaaae61b383 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #8 0x00002aaaac343b01 in atk_object_initialize () from /usr/lib/libatk-1.0.so.0 ---Type to continue, or q to quit--- #9 0x00002aaaae60a910 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #10 0x00002aaaae619630 in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0 #11 0x00002aaaae61afcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #12 0x00002aaaae61b383 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #13 0x00002aaaae60c289 in g_object_interface_list_properties () from /usr/lib/libgobject-2.0.so.0 #14 0x00002aaaae60f9ef in g_object_notify () from /usr/lib/libgobject-2.0.so.0 #15 0x00002aaab4fc887a in NSGetModule () from /usr/lib/firefox/components/libaccessibility.so #16 0x00002aaab5123cbf in gnome_accessibility_module_shutdown () from /usr/lib/gtk-2.0/modules/libatk-bridge.so #17 0x00002aaaae6197fd in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0 #18 0x00002aaaae61afcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #19 0x00002aaaae61e82d in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0 #20 0x0000000000416c25 in yelp_html_printf () #21 0x00002aaaae97196b in g_main_context_is_owner () from /usr/lib/libglib-2.0.so.0 #22 0x00002aaaae96facd in g_main_context_dispatch () ---Type to continue, or q to quit--- from /usr/lib/libglib-2.0.so.0 #23 0x00002aaaae972d95 in g_main_context_check () from /usr/lib/libglib-2.0.so.0 #24 0x00002aaaae97305a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #25 0x00002aaaadfed395 in bonobo_main () from /usr/lib/libbonobo-2.so.0 #26 0x00000000004238b6 in main ()