Best Firefox ever (and I've been using it since it was Phoenix). I just spent some time upgrading. I'm quite pleased that almost all of my "must have" extensions are already Firefox 3 compatible. The only disappointments were that my favorite theme, iFox, had not been updated nor the Compact Menu 2 extension. For now the Phoenity Modern theme is a decent replacemet for iFox and Personal Menu is a great replacement for Compact Menu 2. And it's true, Firefox 3 uses much less memory, is quite snappy and the new bookmarking system is a joy. Here's a screensnap: