Which version of mozilla-mplayer-plugin are you using as well? There have been reports of breakage with the apple site but they are supposed to have been fixed.
** Changed in: mplayerplug-in (Ubuntu) Status: Unconfirmed => Needs Info -- mozilla-mplayer-plugin hangs at 99% https://launchpad.net/bugs/62517 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs