After a series of delays, the new Mozilla Addons site (codenamed Remora) went live late last night. Changes to the site include redesigned visual aspects, localization, and an overhauled discussion/comment system, but probably the biggest change you'll notice is that new extensions do not undergo a mandatory approval process before being available for download.
As extensions are uploaded, they are relegated to the "Sandbox." This means that while they won't appear in search results or under their respective categories, the author can still take advantage of Mozilla's free add-on hosting by pointing users directly to their add-on's download page. Sandboxed addons can be nominated for general availability by requesting an editor review, but according to Mozilla, this should be reserved for addons that are of use to the general population and enhance the Web browsing experience, and I fully agree. We don't need the site cluttered with hundreds of "gam3rHax.com Forum Toolbar" extensions that are only used by their author.
As far as my extensions go, ScribeFire and URL Fixer have been deemed public-worthy, and I've nominated OPML Support. I'll probably leave the others (Slashdotter, GoogleTabs) in the sandbox, as they're not really what I consider "general use."
Update: It looks like the site has been rolled back to its previous state; I can't determine why, but the Mozilla Webdev blog will probably post an update. You can still check out Remora at the Mozilla Addons Preview site.