Ubuntu Multi-Monitor TweaksOct 12, 2012, 12:00 (0 Talkback[s])
(Other stories by Anonymous)
Get full screen flash videos to work on any monitor
In some cases (or maybe always?), full screen Flash videos show up on the primary monitor, even if you've clicked the full screen button while using some other monitor. The above solution works with these full screen Adobe Flash videos too: click a video, then press the key combination you've set up and the video should move to the other display.
So there you have it, now you can move the full screen flash videos on any monitor you want.