Customize the appearance and behavior of popular websites
Greasemonkey allows you to customize the way popular websites look and behave by tweaking their functionality with a script.
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In fact Greasemonkey is not an application in itself. It’s a Firefox add-on that prepares your browser to support Greasemonkey scripts. The add-on puts a small monkey icon in the bottom right corner, from where you can add new scripts and manage the ones you’ve already installed. Other than that, it doesn’t include any configuration options.
The first time you launch Greasemonkey you’re presented with an introductory website which contains basic information and a link to Userscripts, where you can download scripts. Be sure to bookmark this site, as Greasemonkey doesn’t include a link to it anywhere.
Of course, you can also create your own scripts and use them with Greasemonkey – but that requires coding knowledge.
With Greasemonkey you can use hundreds of scripts to change the way popular websites look and behave.
What People Are Saying
- The Good
Fans say it is straightforward and dependable in Firefox, running their user scripts without slowdowns or crashes.
- The Bad
Some people find that scripts which work in other script managers fail here, and long time users feel it lost features when it was rebuilt for modern Firefox. The interface is also described as clunky.
- The Bottom Line
A sensible pick for Firefox users running simple scripts, but anyone relying on popular scripts written for other managers should check compatibility first.











