I don't know if this will help with solving this really annoying bug, but I've realised that Flash can suddenly stop working when I open another tab in Firefox that also contains Flash.
For example, just now I was listening to some music in a Flash player on one website, and when I opened a tab and navigated to another website that contained Flash, all Flash content just disappeared to be replaced by the grey boxes and the music playback ended. So it can actually be interrupted. -- Flash plugin fails to display https://bugs.launchpad.net/bugs/322935 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