Fire Fox Question

I have done the tutorial under Flash MX 2004 from Kirupa about having full screen flash sites. My problem is when i upload my files they don’t work in fire fox but they work fine in Internet Explorer. I didn’t know if it was something in the code or if i needed a new plugin for Fire Fox that i didn’t know about.

Thanks

http://www.kirupa.com/developer/mx2004/fullscreen.htm