About this extension

YouTube High Definition solves a number of annoying YouTube issues.

Features

Automatically play all YouTube videos in the highest resolution possible

Specify your preferred resolution (4k, 1440p,1080p, 720p, 480p, 360p, 240p, 144p)

Change video player size

Control auto-mute volume and auto-stop video play

Supports HD play when videos are embedded in external sites like Facebook, Twitter, Reddit, and others

Set a preferred volume level for all videos

Improve music on YouTube by always playing the best sound quality automatically

Rate your experience

Report this add-on for abuse

If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form.

Please don't use this form to report bugs or request add-on features; this report will be sent to Mozilla and not to the add-on developer.

Used by

Report this add-on for abuse