- Adblock Plus (hide ads etc)
- Adblock Plus: Element Hiding Helper (hide specific elements)
- DownThemAll! (download manager)
- Firebug (web development)
- Greasemonkey (custom Javascript)
- Screengrab! (capture web page as image)
- Secure Login (click to fill in login forms)
- Stylish (custom CSS)
- Post to del.icio.us (my version)
- OpenSearchFox (seems to have disappeared from the web?)