Ok, this is actually because of https://bugzilla.mozilla.org/show_bug.cgi?id=754554. Turning methodjit off for content makes the issues go away.
** Bug watch added: Mozilla Bugzilla #754554 https://bugzilla.mozilla.org/show_bug.cgi?id=754554 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1003733 Title: Angry birds does not work (HTML canvas is broken when built with gcc4.7) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1003733/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
