I know there are loads of interesting add-ons for firefox available, so post away

My Add-ons:
- Adblock Plus
- Downloadhelper
- Fast Dial
- FireGestures
- Forecastfox
- gTranslate
- Image Zoom
- Interclue
- Screen grab!
- URL Fixer

Theme:
Kempelton

Adblock Plus
DNA
DownloadThemAll
Fission
Split Panel

Theme: Dark revisited

My Add-Ons
THERE SO MANY!
-Gaia Online Friend List Generator
-Runescape World Finder

Again, so many....

Theme:
I don't really care... It's black let's just say that

Cooliris
Daemon tools toolbar (never use)
Fast Video Download
Forecastfox
FoxyTunes
FoxyTunes Skin - FS Aqua
IE Tab
Imageshack Toolbar
The Cryptbar Toolbar (never use - no offense)
Undo Last Closed Tab(s) button

EDIT: Theme is default (which on vista, has that IE shading and the buttons - EG: close-tab and back button - are all blue.)

Wikipedia Quick Search.

I like it clean and simple

Addons are:
Adblock Plus
Fast Video Download

Theme is Classic Fox

I have an gadget on the sidebar for that

Adblock Plus
Fast Dial
Firebug (Would be crying in a corner without this)
Firecookie (Extension for Firebug)
FireFTP
FireGestures
Locationbar^2
Tree Style Tab

Greasemonkey

That's the main, and only, reason I switched from Avant Browser to Firefox.