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Preview of Greasemonkey

Greasemonkey by Anthony Lieuallen

Customize the way a web page displays or behaves, by using small bits of JavaScript.

You'll need Firefox to use this extension
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Screenshots
Installing a new user script.Greasemonkey's main menu.
About this extension
Allows you to customize the way a web page displays or behaves, by using small bits of JavaScript.

You can write your own scripts, too. Check out http://wiki.greasespot.net/ to get started. Many scripts already exist, probably ones to enhance your favorite sites. Find them at http://wiki.greasespot.net/User_Script_Hosting .


Having trouble? Please don't post comments here, nobody will see them. If you need help, please read:
http://wiki.greasespot.net/Greasemonkey_Manual:Getting_Help
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This add-on needs to:

  • Input data to the clipboard
  • Download files and read and modify the browser’s download history
  • Display notifications to you
  • Access browser tabs
  • Store unlimited amount of client-side data
  • Access browser activity during navigation
  • Access your data for all websites
More information
Add-on Links
Version
4.13
Size
615.72 KB
Last updated
4 months ago (Aug 5, 2024)
Related Categories
License
The MIT License
Version History
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Release notes for 4.13
New features:
  • GM.openInTab() now works in Firefox for Android. (#3189)
<p>Fixed bugs:</p>
  • Importing a backup could fail when "overwrite already installed scripts" (enabled by default) was disabled. (#3195)
  • Previously unreliable automatic script updates should now work as intended. (#3190)<br />
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