"Please note: We do not recommend that anyone other than developers and testers download the Firefox 3 Beta 3 milestone release. It is intended for testing purposes only. Firefox 3 Beta 3 is now available for download. This is the eleventh developer milestone focused on testing the core functionality provided by many new features and changes to the platform scheduled for Firefox 3. Ongoing planning for Firefox 3 can be followed at the Firefox 3 Planning Center, as well as in mozilla.dev.planning and on irc.mozilla.org in #granparadiso. New features and changes in this milestone that require feedback include..." -- ftp://ftp.mozilla.org/pub/firefox/releases/3.0b3/linux-i686/

A Mozilla Developer Preview of improvements in the Gecko layout engine is now available for download. This is a pre-release version of the Gecko 1.9.3 platform, which forms the core of rich Internet applications such as Firefox.

You wait ages, well minutes, for a new open source web browser client then a bunch all come along at once. So what's new in Firefox Shiretoko Alpha 2 then?

"Please note: We do not recommend that anyone other than developers and testers download the Firefox 3 Beta 1 milestone release. It is intended for testing purposes only..."

ftp://ftp.mozilla.org/pub/firefox/nightly/latest-trunk/

Firefox 3.1 Beta 1 is now available for download. This milestone is focused on testing the core functionality provided by many new features and changes to the platform scheduled for Firefox 3.1. Ongoing planning for Firefox 3.1 can be followed at the Firefox 3.1 Planning Center, as well as in mozilla.dev.planning and on irc.mozilla.org in #shiretoko.

... this Firefox version, carries the code name "Namoroka" Alpha 1, and it is also currently referred to as Firefox.next. And like other Firefox Alphas, it does not bare the Firefox logo. This release uses the Gecko 1.9.2 engine and will likely include several interface improvements in later versions, such as new graphical tab-switching behavior, which was removed from 3.5 with Beta 2.

"The first Firefox 3 Release Candidate is now available for download. This milestone is focused on testing the core functionality provided by many new features and changes to the platform scheduled for Firefox 3.

Mozilla has pushed out another alpha version of Firefox for mobile phones, Fennec, and it's inviting Android, and N900, users to have a shot with the little fox. Fennec is the working title for the mobile version of Firefox, incorporating the irritatingly-named "Awesome Bar" and synchronising in real time with its bigger brother.

Although Firefox 3.5 (formerly Firefox 3.1) is still in beta, Mozilla is already developing Firefox 3.6 code-named Namoroka. Slated for an early-to-mid 2010 release, the browser will be marketed as Firefox.next (FX) moniker in a nod to new technologies set to take Firefox to the next level.