One of my favorite Firefox extensions has finally been updated for Firefox 2.0. TinyURL lets you make wicked long URLs into short ones, which are easier to e-mail to other people, post to newsgroups, or write down with a pen and paper.
For example: Consider this URL:
Whoa, nelly, that's one long URL!
But with TinyURL, it becomes:
Sweet! And the TinyURL extension to Firefox automatically copies the shorter URL to your clipboard, which is nice.
You can also use TinyURL directly from the TinyURL Web site, at TinyURL.com