Firefox Extensions - which are the most useful ?

Adblock + Customize Google

nice thread. a few of the ones ya'll mentioned are handy. :)

definitely Adblock (Plus)

I use almost every extension mentioned so far, and I would like to add SmoothWheel to the list.
It's the kind of extension you don't notice until you can't use it(when you use ie for example). Very useful when reading online.

Adblock, FlashGot and IE Tab

If you have a website that uses FTP, I recommend FireFTP, its useful.
Usage counter is good too. It tells you how much time you've spent on Firefox.

^-^

I'm surprised no one is using FoxyTunes. :O

It's a fav. :wub:

StumbleUpon
FireFTP
GreaseMonkey
IETab
DownThemAll
ForecastFox
FireBug (an absolute must for a web developer!)
FoxyTunes
AdBlockPlus

I also have several widges that allow me to search a few of my favourite sites from the toolbar, ie. google, OiNK, ebay, deli.cio.us, etc.

http://www.computerworld.com/action/...5&pageNumber=1

A useful link, top 20 according to cw... most have already been mentioned though.

Clear private data
Adblock
Distrust
Fasterfox
KeyScrabbler
noreferrer
no script
ref control