Grease Monkey User Scripts
In the same way EditCSS lets you modify the CSS of any web page GreaseMonkey lets you add(/modify?) the JavaScript(s) (GreaseMonkeyUserScripts) on each and every (or your choice) web page you visit !
Ensure you have GreaseMonkey installed then start downloading GreaseMonkeyUserScripts today
Recommended
Expand Text Area: allows you to resize textareas.Zoom Image: Displays a small popup menu over images (in the top left corner) that allows zooming.
If you know JavaScript then why not write your own GreaseMonkeyUserScripts !
REFERRERS
FireFoxExtensions
GreaseMonkey
GreaseMonkeyUserScripts
