The Firefox 3 betas have been available for quite some time now, but they’re just now getting where I can use them.  The issue is that I simply can’t live without my Google bookmarks.  Having my bookmarks stored on someone else’s server is huge, and none of the extensions were compatible with the Betas.  I’m also really anal about how the bookmarks interface works - I need the little star dropdown where I can quickly navigate the menu to get to what I need.  Yes, there is a bookmarks sidebar, but I hate having any sidebars open in my browser.  The solution: Deng’s Google Bookmarks. It’s compatible with the FF3 betas, and it’s awesome.

Some other things that were of concern to me were my various web development extensions - Firebug, Web Dev. toolbar, FireFTP, Dummy Lipsum, etc.  This problem was solved by installing Oxymoronical’s Nightly Tester Tools. The extension allows you to disable compatibility checking. Then you can enable your extensions one by one and make sure they don’t break anything. Luckily, all of my must-have-extensions work perfectly with compatibility checking turned off. Yay!

Finally, I recommend using the Firefox Nightly Builds, as opposed to the betas, so you can get the latest updates (and maybe a bug or two). Not a big deal though, and it’ll update itself to stay current.

There you go, fully functioning bleeding-edge install of Firefox 3, with (hopefully) most of your extensions working! By the way, it installs itself as “Minefield”, rather than Firefox, because, well, you’re taking a chance by installing the nightly builds ;).

Enjoy.