This is most probably related to the Adblock Plus extension which is blocking flash. So, create a new profile, disable all add-ons, enable them one by one with enough time for testing in between.
-- YouTube videos sometimes do not appear, sometimes do https://bugs.launchpad.net/bugs/503107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
