It happened with my too. It was working normally, but when I tried to open www.cursoclio.com.br it crashed. See bug report.
** Attachment added: "Bug report" http://librarian.launchpad.net/5911877/_usr_lib_firefox_firefox-bin.1000.crash -- Close without any cause https://launchpad.net/bugs/70060 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
