Customize controls, options and add-ons

Make Firefox yours by adding and managing the features that you want.

Firefox Page Info window

The Firefox "Page Info" window gives you details about the page you're on. You can also use it to change permissions for the website.

HTML5 audio and video in Firefox

Firefox can handle audio and video content on web pages and can open some media files. Learn about supported formats and managing playback.

Review installed extensions

Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.

Snippets in Firefox FAQ

Snippets are brief messages from Firefox and Mozilla, displayed by default on the New Tab page in Firefox version 88 and below. Learn more.

WebXR Permission Info Page

This article explains Firefox's virtual reality features and how to manage permissions for websites that ask to access your VR devices.

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