Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Archived

How do I disable or hide the Advanced Tab in Firefox's Internet Options?

cor-el replied
TroySYS

I need to stop staff from playing with the Internet Options in particular the Advanced Tab

I need to stop staff from playing with the Internet Options in particular the Advanced Tab

All Replies (1)

You are probably better off if you lock those connection settings.

http://kb.mozillazine.org/Locking_preferences
http://kb.mozillazine.org/network.proxy.type
http://kb.mozillazine.org/network.proxy.%28protocol%29
http://kb.mozillazine.org/network.proxy.%28protocol%29_port

Add code to userChrome.css below the @namespace line.
See http://kb.mozillazine.org/Editing_configuration#How_to_edit_configuration_files

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

#connectionGroup {
 display:none !important;
}

Modified by cor-el