Fullscreen Popup Window

I have a client that wants a fullscreen popup window for a website and as much as I fought I cannot change thier minds. I had it working correctly till I opened it up in Firefox and found the popup code doesn’t work. I’ve been searching around and I cannot find a good tutorial or source for one.

Here’s my code, am I doing something wrong?
[size=1][color=darkolivegreen]<SCRIPT LANGUAGE=“JScript”>
function goFull() {
open(“home.html”,"",“fullscreen=yes ,scrollbars=no, resizable=no, status=no, titlebar=no,toolbar=no”);
function goFull2() {
open(“intro.html”,"",“fullscreen=yes ,scrollbars=no, resizable=no, status=no, titlebar=no,toolbar=no”);
I know fullscreen popup is the devil, but I really need to get this for the client… If anyone could help me I’d be greatful!