Here are kind of my general Extension/Add-On Commandments:
- Thou shalt not take my screen real-estate!
- Thou must not add advertisements...ANYWHERE!
- Thou Shalt not collect my private data and use it elsewhere
- Thou shalt work most of the time
- Thou shalt not slow down my browser significantly.
Anywho Chrome is a browser that really focuses alot on Screen real-estate and speed.
FastestFox, a Firefox Extension ported to chrome. This extension has so many great features making browsing faster, my favorites are pagination(this means when you scroll to the bottom of a page, of a multi-page ordered site like a blog or a search engine result page it will automatically load the next page while you browse so you can just scroll down and it's there) and the behind the scenes speed improvements.
There is also a feature, that I haven't really used much where if you highlight something, a little popup appears and gives you options of what to do with the highlighted text, like Tweet it, Facebook, Myspace, wiki and Google it