FireFox Won't dual screen anymore IE8 still will

[Tangoj]

I have my computer hooked up to a monitor and my plasma tv for tv viewing through hulu and such. Before i upgraded to windows 7 I could use my fire fox and drag it to my plasma from my desk top and play the video in full screen on my plasma. Now i cant it will play small (in browsers) But when i full screen it will jump back to my monitor and play there. I do not have this problem with IE8 though. It will stay on my plasma full screen but it runs slow and glitches on hulu. windows media player also works fine and with no glitches. Only with firefox. This only started happening after i upgraded to win 7 from vista. Before that it worked perfect. Thanks for any help.. (Did clean install of win 7)

 

[ccatlett1984]

Uninstall firefox and do a clean reinstall of the latest version of it.

 

[Tangoj]

tried that. still no go on dual screen full screen

 

[ccatlett1984]

check out this link:
How to send full-screen applications to 2nd monitor? - nV News Forums

 

[Tangoj]

Yea. I know how to do that. I don't have a resizing problem. I can move it over to my other screen just fine and every media program "movie player classic, windows movie player, real player, divx, ie8 and so on" Will work perfect on my second screen. I can put fire fox on my second screen as well and use the browser and watch movies in browser mode. But as soon as i click full screen on firefox. It doesn't resize it jumps clear back to my main monitor where as, all the other programs i listed will work fine in full screen mode on the screen i drag them to (the second one) and will not jump back to the main. But for some odd reason firefox plays more steady and fluently than the others. Otherwise i just wouldn't use firefox. Again i did not have this problem until i upgraded from vista x64 to windows 7 x64 with clean install. Thanks for help