How do I make irc: URLs open my default IRC client instead of ChatZilla?
If you are using the Mozilla Suite or SeaMonkey, you will need to use the uninstall procedure. For Mozilla Firefox, you can disable the ChatZilla extension as follows: • Mozilla Firefox 1.5 and earlier: Select the menu Tools►Extensions. Mozilla Firefox 2.0 and later: Select the menu Tools►Add-ons. • Select ChatZilla in the list. • Right-click and select the menu Disable. • Restart Mozilla Firefox to complete.