Close browser from inside HTML-context (using a specific firefox-profile)?

Hello,

for a project  i have configured firefox in a kind of kiosk application
(using win32 here).
It's evoked in fullscreen mode right form the commandline (using
autohide extension).

Now, is there a way to evoke a shutdown of my firefox in fullscreenmode
 from something inside the Gecko Rendering Engine?

I fact I do need a way to close my "application" which is running in an
fullscreen firefox-session from inside this fullscreen html-rendering
engine-context.

Is there any chance to edit the profile in such a way that javascript
(on this spefic profile) is allowed to close the whole application by
"self.close()"

Or is there a way to evoke "File->quit" from inside HTML? (again in a
specific profile, i do know that firefox doesn't allow that normally)


Thanks in advance,

andreas