Title says it all really, I use;

Adblock Plus,
Adblock Plus element hiding helper,
Adblock plus filterset G,
Chatzilla,
Customise Google,
del.icio.us bookmarks,
FireFTP,
Flashgot,
NoScript.

All the adblock stuff makes sure I only see the part of the net I want to, chatzilla is my IRC client, customise google helps me get better results from google, del.icio.us is suck a better bookmark system than normal bookmarks, fireFTP and Flashgot are for downloads and Noscript is to get rid of any remaining spoon..

What do you use and why?