hi mikecbz2001, firefox builds by mozilla don't support settings via gpo at all - the common method to lock/preconfigure certain preferences in firefox is described in the article at http://kb.mozillazine.org/Locking_preferences

Hello Phillip,

thanks for your quick reply. could you please help me with this. how can i edit this in configuration file. i am new to this.

Many thanks, Ronak

hi, with this method you cannot hide the menu completely, but lock certain settings so that your users are not able to change them (like set a custom homepage, proxy configuration) - i don't know what exactly you're trying to achieve...

hello Phillip,

I want to hide network tab within advance setting.

as i've said, you cannot hide settings or panels, but you can lock them so users cannot change them anymore (they'd be shown as greyed out in the interface).

for example, if you would like to lock the proxy settings within the advanced > network panel, the content in your mozilla.cfg file would need to look something like this:

// Lock default proxy settings
lockPref("network.proxy.http", "10.1.1.1"); 
lockPref("network.proxy.http_port",8080);
lockPref("network.proxy.type", 1);