greasemonkey

IMDB Age is a Greasemonkey script that I wrote. This script adds the age and other various info onto IMDB pages. This script adds the age and other various info onto IMDB pages.

Greasemonkey is a Firefox extension that lets you edit the DOM (ie the page) on the fly after the page is downloaded and parsed, but before it is rendered. Thus making it very easy to tweak pages slightly.