Rated 5 out of 5 stars

Far better than mIRC.

Edit: I’ve now stopped using the extension version because I got tired of having to quit IRC every time I needed to restart Firefox (which is quite a lot, since I use nightlies). Now I use the XULRunner version from http://chatzilla.rdmsoft.com/xulrunner/ .

Since Firefox 3 has XULRunner built in, all you have to do is unzip the ChatZilla files and create a special shortcut.

In my case, the target is “"C:\Program Files\Mozilla Firefox\firefox.exe" -app "C:\Program Files\ChatZilla\application.ini"”. (I’ve also changed the icon, which is Firefox’s by default, to the one in ChatZilla’s \chrome\icons\default\chatzilla-window.ico file.)

This review is for a previous version of the add-on (0.9.83).