Firefox 3.x

Firefox is a web browser based on the open source Mozilla web browser. It was intended to be lighter weight and faster than Mozilla, separating the e-mail client in to the new Thunderbird product. At release, it implemented better support for web standards than Microsoft Internet Explorer. Firefox included features such as tabbed browsing and support for add-ons.

Screenshots

Release notes

Firefox 3 was a major overhaul that improved performance. It dropped support for Windows 98 and ME, which were still somewhat in use at the time.