I have many hits concerning the firefox kiosk mode. I provide my browser.jar file as download (Save link target as).
Go to the ‚chrome‘ folder in the Mozilla Firefox program directory. Locate the browser.jar file rename it to browser.ja_
Copy my browser.jar instead. Restart Firefox. Watch Firefox in Kiosk mode.
This is a recommended site about Firefox.
Also recommended Andrew Mutchs tutorial for kiosk mode.