Comment 8 for bug 38131

well, with original firefox i've got that problem:
https://bugzilla.mozilla.org/show_bug.cgi?id=319236
(gdb) bt
#0 0xb7de6d28 in pthread_mutex_init () from /lib/tls/libpthread.so.0
#1 0xb6aa7243 in __FCDeleteKey () from /<email address hidden>/components/talkback/talkback.so
#2 0xb6a934d1 in ?? () from /<email address hidden>/components/talkback/talkback.so
#3 0xb6a97735 in ?? () from /<email address hidden>/components/talkback/talkback.so
#4 0xb6a9785f in __FCInitialize () from /<email address hidden>/components/talkback/talkback.so
#5 0xb72d15dd in NSGetModule () from /<email address hidden>/components/libqfaservices.so
#6 0xb72d19ca in NSGetModule () from /<email address hidden>/components/libqfaservices.so
#7 0xb72d1a07 in FCInitialize () from /<email address hidden>/components/libqfaservices.so
#8 0xb72d1108 in nsQfaServicesImpl::~nsQfaServicesImpl ()
   from /<email address hidden>/components/libqfaservices.so
#9 0xb72d119a in nsQfaServicesImpl::~nsQfaServicesImpl ()
   from /<email address hidden>/components/libqfaservices.so
#10 0x0851f07c in nsXPTCVariant::Init ()
#11 0x0807a72d in ?? ()
#12 0x08a98008 in ?? ()
#13 0x00000000 in ?? ()
(gdb) quit