Useful GreaseMonkey scripts. FireFox is so great.

To install, just go here, save the .xpi file to your desktop, and click "Open File..." in FireFox.

For starters, I highly recommend using AmazonA to change all your referrer links to backwardscity-20. (Note: You have to save the file to your hard drive and edit the .js for this to work.) Finally having a Delete button for Gmail is pretty sweet, too.