You can download 8 cool themes for FireFox from this site. They were created by Andrew Shay (xXSonyBoy4lfeXx). As of right now all themes are compatible with FireFox 3.6.

Mozilla classifies some themes as "Experimental" because they feel they are not ready for everyone in the public to download them. Some of my themes are "Experimental" because Mozilla feels that I haven't changed enough in my theme. I haven't changed everything because I simply don't know how. They are safe to use so don't be worried!

I have started working on moving some of my themes over to FireFox 4.