Same problem here on Kubuntu Intrepid, latest updates applied.
Tried all sorts of solutions, even going for bleeding edge Nvidia 180.16
drivers, nothing stops Firefox from crashing. (although I now enjoy all the
fancy 3D goodies on KDE 4.1.2)
Uninstalled winbind, samba and anything related to
Mark, I kinda guessed by now that you figured out it had nothing to do
with samba since it sounds so silly to start with. Anyway, that same FF
version worked absolutely perfect before the upgrade from 8.04 to 8.10.
As such, I'm not so sure at all that getting into a back and forth
yes/no ping-pong