You may find useful the crude workaround presented at: https://launchpad.net/distros/ubuntu/+source/firefox/+bug/60377/comments/1
-- totem-mozilla claims RTSP mime type but can't play them https://launchpad.net/bugs/66902 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
