So the other day I found an addon called stylish, and I really enjoyed testing and modifying user styles. Stylish is a program which allows you to make custom stylesheets for any website, as well as the actual Firefox Chrome. So far I’ve customized my Google homepage, gmail and other google products, Youtube, Facebook, and minor tweaks to various other sites I use. Here are some of the styles I really liked.
Crystal Firefox v1.2 (Custom about:blank page used when opening new tabs)
Complete Redesign of Userstyles.org – Super Style (Makes the userstyles.org website not so shitty)
Facebook – Dark Shiny Blue, transparency (Makes Facebook look excellent, but laggy)
Firefox 3 – Hide Search and Go Buttons
Firefox 3: Better Tabs (Various Tab Tweaks)
Google Web Search – Dark Gray Theme (A nice Google)
Yellow https location bar (Location bar is yellow when using SSL)
Youtube – Dark shiny blue, transparency
There are so many more styles on http://userstyles.org and you can always create your own!