I have the same problem with Flash 9. I think this is a problem in Flash. I installed Flash 10 (which was released very recently) and I noticed that full screen video is much better with Flash 10 - no choppy video anymore.
** Changed in: flashplugin-nonfree (Ubuntu) Sourcepackagename: None => flashplugin-nonfree -- Flash Video Low Framerate on Fullscreen in Firefox https://bugs.launchpad.net/bugs/282226 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