Requesting "unsafe" firefox for local ajax use

[Freia]

Hi, I recently made a nice graphical interface for Media Player Classics
web interface, however, after finnishing the "Playlist" function (which
depends on PHP for session-handling, the whole thing colapsed.
MPC cant pass GET- and POST-data to php, which forced me to put the
Playlist-functions on my local web-server.

Now to the problem:
MPC is using port 13579 and Apache 80, however AJAX does not support
cross-site, so the 13579 html-file can't call the 80-php-file. Any
workaround? or is there any way to get a FF version that does not have
this security issue? the computer thats running the interface is not
internet connected, so this won't threat my system

//Regards Me

[Freia]

After much problems I found a way to allow scripts to disable this
feature, using about:config and the
"signed.applets.codebase_principal_support" setting

Thanks anyway ^^