Otavio I reported a bug for you since your stacktrace doesnt match RoDchile's. See bug #88037
-- when firefox is working, cpu start to work heavy and at the end firefox crash. It's not the first time and sometimes the crash became a system crash https://launchpad.net/bugs/76523 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs