A first look at Firefox 3.0
 

Mozilla has officially released the first public alpha build of Firefox 3.0. Codenamed Gran Paradiso, Firefox 3 includes the new Gecko 1.9 rendering engine which leverages the open-source Cairo rendering framework and features heavily refactored reflow algorithms that improve Firefox layout functionality and resolve some long-standing CSS bugs.

http://arstechnica.com/news.ars/post/20061212-8409.html