Greasemonkey
Userscript manager extension for Firefox / From Wikipedia, the free encyclopedia
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This article is about the software. For the comic, see Grease Monkey. For other uses, see Grease monkey (disambiguation).
Greasemonkey is a userscript manager made available as a Mozilla Firefox extension. It enables users to install scripts that make on-the-fly changes to web page content after or before the page is loaded in the browser (also known as augmented browsing).
Quick Facts Original author(s), Developer(s) ...
Original author(s) | Aaron Boodman |
---|---|
Developer(s) | Anthony Lieuallen, Johan Sundström,[1] 13 more[2] |
Initial release | 28 March 2005; 19 years ago (2005-03-28)[3] |
Stable release | 4.11
/ 27 January 2021; 3 years ago (2021-01-27) |
Repository | |
Written in | JavaScript, XUL, CSS |
Operating system | Cross-platform |
Available in | English |
Type | Mozilla extension |
License | MIT License |
Website | www |
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The changes made to the web pages are executed every time the page is viewed, making them effectively permanent for the user running the script.
Greasemonkey can be used for customizing page appearance, adding new functions to web pages (for example, embedding price comparisons within shopping sites), fixing rendering bugs, combining data from multiple web pages, and numerous other purposes.