Userscripts.org. One of the most astonishing things about the Firefox browser is how powerful it is. I now have over 35 extensions installed which have literally transformed my working and browsing habits. So it’s with astonishment that I report an even larger body of add-ons for this mighty tool, in the shape of Greasemonkey scripts. This site has nearly a million of them. Does that sound like a lot to you? Yeah me too.

The only problem is that I’ve found they can be a lot more resource hungry than plain old vanilla extensions, which hits the browser performance hard. But I keep around half a dozen installed and switch them on and off when needed.