--- stack trace ---
 Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
 Core was generated by `/usr/lib/firefox/firefox-bin'.
 Program terminated with signal 11, Segmentation fault.
 #0  0xffffe410 in __kernel_vsyscall ()
 #0  0xffffe410 in __kernel_vsyscall ()
 #1  0xb7e3b651 in ?? ()
 #2  0x0805b2cc in SIGSEGV_oldact ()
 #3  0x0000000b in ?? ()
 #4  0xbfdc0a58 in ?? ()
 #5  0x08057556 in nsProfileLock::operator= (this=0xb, rhs=@0xbfdc09cc) at nsProfileLock.cpp:96
 No locals.
 #6  0x08057556 in nsProfileLock::operator= (this=0xb, rhs=@0x33) at nsProfileLock.cpp:96
 No locals.
 #7  <signal handler called>
 #8  0xb7ea86d4 in ?? ()
 #9  0xb1dc7208 in ?? ()
 #10 0xb78adff4 in ?? ()
 #11 0xb2100010 in ?? ()
 #12 0xb1dc71e0 in ?? ()
 #13 0xb1dc71a7 in ?? ()
 #14 0x00000000 in ?? ()
StacktraceTop:
 __kernel_vsyscall ()
 ?? ()
 SIGSEGV_oldact ()
 ?? ()
 ?? ()
--- end of stack trace ---