It's been posted all over by now, even Slashdotted (mozilla.org was down for quite awhile earlier), Neowin-ed, blogged a thousand times over. Yes, Mozilla Firebird is now known as
Ben Goodger (Firefox Engineering Lead) wrote about the rebranding of Firebird to Firefox. Steven Garrity was drafted in as the new Visual Design Coordinator who developed the new Firefox icon you see below (together with the rest his team). Jon Hicks implemented it (meaning he did the computer graphic design work), as he describes in his journal entry. Yes links galore and more to come.
The rebranding also entailed some new spiffy icons, decals and ads which you can find in the Mozilla Firefox ad webpage. If you had a Firebird button or ad, it's time to update them! For my case, I had an 80 x 15 pixel Firebird blog button, but the new Firefox one is 94 x 15 pixel large, which was totally out of whack with the rest of the buttons. Photoshop to the rescue...
So what's new in Firefox 0.8? I won't repeat what's already been written, so you can refer to the Firefox What's New section and Jesse Ruderman's listing of new features and bugfixes. In particular, one nasty regression that wasn't fixed was the "Installing 2 extensions without restarting re-launches extension-installer for previous installed extensions" regression. Hell, one of the biggest flaws of Firebird was it's poor extension management. Extensions often break a Firebird installation
, like Tab Browser Extensions (Firefox 0.8 doesn't seem to work with TBE, so I got this patched TBE extension which you can get as well). And removing extensions has to be done manually (and tediously). Thankfully this will be addressed in Firefox 0.9 where an extension uninstaller is planned.
As for zip builds (as opposed to installer builds) for Windows, there isn't an official one yet, though Ben Goodger says he'll have one by the week. Unofficial builds are also being released, and the best place to get them is to check out the Firefox builds forum at MozillaZine.org. jesus_x has a zip build which was highlighted at MozillaNews.