Another week, another Firefox 3.6 beta release. The folks behind the Firefox movement are working hard to get this release as solid as possible before the end of the year, using a faster beta release cycle than before.

But that doesn't mean that the amount of changes is reduced. In fact this fourth beta includes 140 changes compared to the last beta. Of course stability has been addressed to be rock hard, but also minor changes have made it into this release. Mac fans will be pleased to know that the unified toolbar now matches Snow Leopard, page load up improvements (with asynchronous scripts), support for the HTML 5 File API, and much more.

Add-on developers are encouraged to test this release with their software, especially since the recent changes with regards to stability. Add-ons in Firefox 3.6 have a little less ability to extend the browser to offer greater stability overall, which sounds like a fair trade off. In the future, say Firefox 4 or later, when the multi-process project takes off this might even change the add-ons space even more in many directions (good and bad).

Overall this release looks really solid, and it's definitely a recommended update and download for all Firefox web developers, add-on developers, and users who want to help out make this release unbeatable.