Firefox 3 is based on the Gecko 1.9 Web rendering platform, which has been under development for the past 31 months. Building on the previous release, Gecko 1.9 has more than 12,000 updates including some major re-architecting to provide improved performance, stability, rendering correctness, and code simplification and sustainability. Firefox 3 has been built on top of this new platform resulting in a more secure, easier to use, more personal product with a lot more under the hood to offer website and Firefox add-on developers.

What’s new in Beta 4?

Firefox 3 Beta 4 includes more than 900 enhancements from the previous beta, including drastic improvements to performance and memory usage, as well as fixes for stability, platform enhancements and user interface improvements. Many of these improvements were based on community feedback from the previous beta.

When may we expect the final release?

If you remember back from the time Firefox 2 came out it only took 2 months after the last Beta until the first official FF2 release. According to the project calendar it looks like there will be a Beta 5 shipping out later this month. If this is the last Beta we might get the first official release before June!

In my mind I think this is going to be the best browser so far and I keep my fingers crossed for an early summer release.