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.

Site Permission Add-ons

Sites can ask to install permission add-ons that modify Firefox’s default security behavior to give them extra privileges. Learn more.

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.

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Grow and share your expertise with others. Answer questions and improve our knowledge base.

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