Greasemonkey is an excellent extension for Firefox that makes it possible to customize any website as you want with the help of Javascript. I made a script to handle widening problems with the Sweclockers Forum, it is available on my brand new Greasemonkey page.

I programmed a piece of software to get a random selection of mp3-files that you can put on your flash-based mp3-player. Of course it is available for free.