Songbird's IRC add-on offers a simple and extendable chat interface.
ChatZilla also has a wonderful range of additional features such as logging, DCC chat and file transfers, JavaScript plug-ins, and CSS styling. However, the most impressive feature is the ability to effortlessly customise the software with JavaScript plug-ins and CSS styling. This makes ChatZilla the ideal IRC client for developers who want to fully customise the software to fit their needs.
Overall, ChatZilla is a clean and functional IRC client that has all the features you need. Plus, the added benefit of easy customisation with JavaScript plug-ins and CSS styling makes it stand out from the crowd. Whether you're new to IRC or a seasoned veteran, ChatZilla is definitely worth a try.
Version 0.9.84.0.20090216: N/A