Firefox 2.0 extensions:
- adblock plus (easylist)
- customize google
- download statusbar
- fasterfox
- gmail notifier
- google desktop
- pdf download
- scrapbook
- tab mix plus
- tinyurl creator
- update notifier
- web developer

Thunderbird 2.0 extensions:
- configdate
- adblock plus
- contacts sidebar
- enigmail
- mnenhy
- quote colors
- sender verification extension
- update notifier

Bookmarklets:
- python bar [trac]