This has apparently been corrected in the last firefox update (version 1.5.0.9). I now can log into my bank website without crash.
Thank you Cyril -- epiphany (and firefox) crashes on a web page since last update https://launchpad.net/bugs/80767 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs