.
Thread 1 (process 18303):
#0  0xb4816107 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#1  0x08106830 in ?? ()
#2  0xbfaf9b58 in ?? ()
#3  0xb4820a88 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#4  0xb481a9b8 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#5  0x081066a8 in ?? ()
#6  0xb4822a40 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#7  0xbfaf9b58 in ?? ()
#8  0xbfaf9b5c in ?? ()
#9  0xbfaf9b60 in ?? ()
#10 0xbfaf9b64 in ?? ()
#11 0xbfaf9b68 in ?? ()
#12 0xb4746084 in nsCOMPtr_base::~nsCOMPtr_base ()
   from /usr/lib/firefox/libxpcom_core.so
#13 0xb4814a3b in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#14 0x081064f0 in ?? ()
#15 0xbfaf9bd8 in ?? ()
#16 0x00000000 in ?? ()