Userscript

A userscript (or user script) is a program, usually written in JavaScript, for modifying web pages[1] to augment browsing. On desktop browsers such as Firefox, they are enabled by use of a userscript manager browser extension such as Greasemonkey. The Presto-based Opera-browser-supported userscripts (referred to as User JavaScript[2]) are placed in a designated directory. Userscripts are often referred to as Greasemonkey scripts, named after the original userscript manager for Firefox.

On Wikipedia, a user scripts feature is enabled for registered users that allows them to install userscripts to augment editing and viewing of the encyclopedia's pages.[3]

Userscript managers
Main article: Userscript manager

A userscript manager is a type of browser extension and augmented browsing technology that provides a user interface to manage scripts. The main purpose of a userscript manager is to execute scripts on webpages as they are loaded. The most common operations performed by a userscript manager include downloading, creating, installing, organizing, deleting and editing scripts, as well as modifying script permissions (e.g. website exceptions).

Userscript repositories

One aspect of userscripts is that they can be shared. They can be uploaded to a userscript repository where they become available to other users for downloading.

Historically (circa 2005-2011) userscripts.org, created by American programmer Jesse Andrews, was the largest such repository for userscripts. Over time, the site was transitioned between various maintainers before it went offline completely. All that remains is a mirror, which is useful for archival purposes.[4]

A handful of the most active contributors in the userscripts.org community[5] created OpenUserJS,[6] which is actively in use today. Also available is Greasy Fork, a repository largely developed and maintained by Canadian programmer Jason Barnabe.[7]

Users of the Greasemonkey[8] and Tampermonkey[9] extensions may choose to install .user.js scripts from any location.

gollark: I suppose she might be annoyed at our seemingly insane actions.
gollark: HelloBoi, more healing.
gollark: I think the girl is unconscious because of being on fire.
gollark: Can helloboi conjure *bee*?
gollark: I suspect that the dangerous areas may contain magic bee food or general valuable items.

References
  1. "User script". Computer Hope Dictionary. Computer Hope. 2017-04-26. Retrieved 2017-08-19. script that is run in a Web browser to make live changes to a Web page. These scripts are oftentimes used to add some functionality to a page or to change its appearance. These are typically written in JavaScript, but can be written in other languages as well.
  2. "User JavaScript". Opera.com. Opera.com. 2012-06-02. Retrieved 2017-08-31. User JavaScript allows you to specify local JavaScript files for Opera to include on every page that you visit.
  3. Broughton, John (2008). "Chapter 21: Easier Editing with JavaScript". Wikipedia: The Missing Manual. O'Reilly Media. p. 401. ISBN 978-0596515164. You can customize Wikipedia in ways that make your editing easier with user scripts, which are written in JavaScript code.
  4. Userscripts.org mirror : creator Jesse Andrew's profile
  5. A snapshot of the most active members in userscripts.org
  6. Collaborators of OpenUserJs on GitHub
  7. Code metrics for greasyfork, a Ruby based userscript repository
  8. Userscript hosting
  9. Tampermonkey FAQ

See also
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