Firefox 3.0b3 was released February 12th this week. Firefox 3 is based on the new Gecko 1.9 Web rendering platform, which has been under development for the past 30 months and includes nearly 2 million lines of code changes, fixing more than 12,000 issues. The Firefox 3 is still recommended for testing purposes only.

You can get more information about Firefox 3.0b3 by downloading the beta and read their release note

[tags]firefox, firefox3, firefox 3 beta 3, new firefox, gecko 1.9[/tags]