Mozilla Firefox 3

Download Firefox
Visit Firefox

The browser provides virus, popup and spyware protection in a simple, easy to use tabbed interface

The Firefox project (formerly Firebird, which was formerly Phoenix) is a redesign of Mozilla's browser component, written using the XUL user interface language and designed to be cross-platform. 

Firefox is a small, fast and very easy to use browser that offers many advantages over other web browsers, such as the ability to block pop-up windows and the tabbed browsing.

New Features:
One-Click Bookmarking
Improved Performance
Password Manager
Smart Location Bar
Instant Web Site ID
Full Zoom
Platform-Native Look & Feel