I have the same problem, I will attach my crash log.
** Attachment added: "firefox startup crash dump" http://librarian.launchpad.net/6527780/_usr_lib_firefox_firefox-bin.1001.crash -- Segmentation fault (core dumped) https://launchpad.net/bugs/87555 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs