Here are mine, at the moment. These seem to be 3.0-friendly. I’ll update this as more plugins become available/improved.
- Adblock Plus
- SiteBar client (links to a prerelease 3.0 version)
- Colorful Tabs
- FireGestures
- IE View Lite
- Xippee search term management
Everybody loves Tab Mix Plus (including me), but… it’s really just a theft-and-scrub of many other extensions, and the authors haven’t been able to pull it all together for FF3 yet. At least not officially, I’m using this prerelease and it seems OK so far:
And for developing, these speak for themselves. Ready to go for FF3…