Since everyone else is doing it, why not me. Here are the Firefox extensions I'm using (thanks to the ListZilla extension, exporting the list was simple):
ColorZilla 0.8.2
Copy Links 0.1.3
CustomizeGoogle 0.41
DictionarySearch 1.5
Forecastfox 0.8.2.5
Greasemonkey 0.6.4
Linkification 1.1.9
ListZilla 0.7
MeasureIt 0.3.5
OpenBook 1.3.4
PDF Download 0.6
Saferfox Xpanded 3.2.2
Tab X 0.9.2
Tabbrowser Preferences 1.2.8.8
Web Developer 1.0.1
I've pared down my extensions to the ones I really use regularly. It's always a bit addictive to go finding and adding new ones, but the more you have the slower Firefox will run. At one point I was up to about 25 extensions and FIrefox was crawling and behaving oddly.
I'd recommend using ListZilla to periodically export your list in case you have to do a new Firefox install. It can be a pain trying to remember which Firefox features are standard and which are extensions.
