I just upgraded to the PR 1.0 release of Firefox, and discovered their "live bookmarks". I've had an RSS feed for a bit, but wasn't sure were to put the link (I think it rolled off my news section), and didn't realize that the HTML header provided a space for it. I got some help from Vladimir Vukicevic's website, and now Firefox 1 users can see that nice little orange tag in the bottom right of their browser.
Also on the topic of Firefox, many of my most used extensions, and my most used theme are not yet updated. Grr. Just in case you care, I really like the following extensions: