How to Use Greasemonkey

Last Updated: March 24, 2019

Greasemonkey is an extension for the Firefox browser that allows users to write or install scripts that change the functionality of a website. The scripts are executed every time a website is loaded, so Greasemonkey could be used to permanently alter a user's experience of that website. The extension is useful for adding new elements on the page, fixing rendering bugs, or even gathering data. Learning how to use Greasemonkey can improve your web browsing experience significantly.

Method 1

Method 1 of 2:

Installing the Greasemonkey Extension

1
Click on the Firefox drop-down menu at the top left of the browser and select Add-ons.
2
Type Greasemonkey into the add-ons search box at the top right of the browser.

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3
Find Greasemonkey in the list and click on Install.

Method 2

Method 2 of 2:

Installing Greasemonkey Scripts

1
Find a Greasemonkey script that you want to install.
- Visit www.userscripts.org, a web repository that contains thousands of custom scripts that can be used with Greasemonkey.
2
Use the User Scripts search box to find specific scripts that you want to use. For example, if you would like to find ways to improve your Facebook browsing experience, type "Facebook" into the search box to see a list of all Greasemonkey scripts that affect Facebook.
3
Click on Scripts in the website navigation bar if you just want to browse all of the available scripts. This is good if you don't have a specific script in mind and just want to see what's out there.
4
Click on Tags in the website navigation bar if you want to view scripts by categories. The tags in the list will be different sizes based on their popularity: the larger the text, the more popular the category. This is a good way to see what's popular right now.
5
Click on Install once you've found a script that you want to install.

Community Q&A

Question

How can I enable Greasemonkey in Firefox?

Community Answer

Follow the instructions listed above. You can consult the internet using a search engine if you have more questions.