How to Turn Off JavaScript in Firefox

Disabling JavaScript in Firefox should take only a few minutes, even if you’re unfamiliar with using Firefox’s settings. Before you begin, make sure you’ve updated Firefox to the latest version.

Why Disable JavaScript in Firefox?

You might need to turn off JavaScript for performance reasons or as part of a troubleshooting guide. JavaScript can pose a security risk, so disabling it decreases your risks of downloading malware. Sometimes, JavaScript malfunctions on a website, which prevents the page from loading. It can also cause the browser to crash. Disabling JavaScript might allow you to view a simplified version of a page that won’t load properly. When developing your website, you’ll need to know how to disable JavaScript in Firefox for troubleshooting issues. For example, if you have a plugin that uses JavaScript, you might have to disable it to fix a problem.