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Userscripts are pieces of JavaScript that are injected into a page, typically by a browser extension.

How to install userscripts

To use userscripts, you first need to install a browser extension to support them. One of those is Tampermonkey. It is available for chrome, firefox, opera, edge and safari

Most pages hosting userscripts offer a button to install the script.

How to create a userscript

Userscript are just JavaScript code with a metadata block at the start.

There are several pages that host userscripts. E.g. greasyfork.org or openuserjs.org.

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