Depending on what you want to do, you either need to (for browsing) or install a runtime (for development). 1. For Browsing: How to "Download" or Enable JavaScript

Type about:config in the address bar, search for javascript.enabled , and ensure the value is set to true . 2. For Developers: How to Install JavaScript (Node.js)

The phrase is a common point of confusion for new users. JavaScript is not a single software program like Microsoft Word that you install on your desktop. Instead, it is a programming language that lives in different "runtimes."

If you are trying to "get JavaScript" because a website says it's missing, you don't need to download anything. It is already built into every modern web browser (Edge, Chrome, Firefox). You just need to make sure it's turned on.

If you want to write and run JavaScript code on your computer (not just in a browser), you need to download a runtime called . This is what most people mean when they say they want to "install JavaScript" on Windows 10. Step-by-Step Installation Guide:

Go to Settings > Privacy and security > Site settings > JavaScript and select "Sites can use JavaScript" .

Go to Settings > Cookies and site permissions > JavaScript and toggle it to Allowed .