Lil Devil's Greasemonkey Scripts

By Lil Devil on August 11, 2009 – 5:44pm

Greasemonkey is a Firefox extension that enables web pages to be re-written on the fly. Page elements can be added, changed, moved, and deleted altogether. How a page is changed is controlled by a Greasemonkey User Script, which is written in JavaScript. Several User Scripts which I have written are listed on the right.


Installing Greasemonkey: Go to the Greasemonkey page and click the "Add to Firefox" button. Due to security precautions, Firefox will require you to add that site (mozilla.org) as an allowed site for extension installation. When you click install, a yellow bar will appear at the top of the browser window saying it has prevented the site from installing software on your computer. To allow installation, click the "Edit Options" button, then click "Allow", then "Close". Then you need to re-click the install link to really install it. You will then need to restart Firefox for Greasemonkey to become active.

Installing a Script: After Greasemonkey is installed, click on the "install" link for a script. You will then see a dialog with the name and a brief description of the script. Click "Install". Follow the prompts to complete the process. When installing a script, there is no need to restart Firefox. It becomes active immediately.

Editing, Disabling, and Uninstalling a Script: Right-click on the Greasemonkey icon Greasemonkey icon in the Firefox statusbar, and select "Manage User Scripts..." In the dialog, select the script on the left-hand side. You can then disable, edit, or uninstall the script.

Updating a Script: All of my scripts include code to automatically check for updates every few days. When a script detects that a new version of itself is available, it will alert you. You can then decide if you want to install the update, or ignore the alert.


Announcement List: Join this mailing list and you'll receive an email whenever a new Greasemonkey script has been added to the site, or when an existing script has been upgraded.

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Recent Issues

If you have questions or suggestions about these scripts, you can email me at lildevil [at] gpxspinner [dot] com. However, if you're having issues with Greasemonkey itself, try the Greasemonkey Users Usenet group.