Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Audio and Video

Everything you need to know about audio and video.

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Watch DRM content on Firefox

Allow or block media autoplay in Firefox

Fix common audio and video issues

What to do if Firefox won't play any sounds

Audio and video files in Firefox

Share browser windows or your screen with sites you trust

Control audio or video playback with your keyboard

Mute sound in Firefox tabs

Playing 4K (Ultra-High Definition) YouTube videos in Firefox

I can’t play audio on a Remote Desktop Connection

Videos don't have sound on Citrix

Why is each open Firefox tab showing up in the Windows volume mixer?

Fix video and audio problems on Firefox for Windows N editions

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