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Disable YouTube AV1 and VP9

Disable AV1 and VP9 for video playback on YouTube

How to install

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

How to install

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

Author
𝖢𝖸 𝖥𝗎𝗇𝗀
Daily installs
4
Total installs
1,652
Ratings
3 0 0
Version
2.4.5
Created
2023-05-12
Updated
2025-06-27
Size
5.08 KB
Compatibility
Compatible with Firefox Compatible with Chrome Compatible with Opera Compatible with Safari Compatible with Edge
License
MIT
Applies to

Disable YouTube AV1 and VP9

  • As use this script, you will disable both AV1 and VP9 so all your YouTube videos are likely to become AVC1.
  • You will be beneficial by hardware decoding but some high resolutions like 2k and 4k will no longer be available.

  • Opposite Script: Use YouTube AV1

  • Related Script: Disable YouTube AV1

Note:

Important Note: Without AV1 and VP9, some high resolution modes of videos might not be available in AVC1. (e.g. 2k & 4k)

AV1 is not yet supported in hardware decoding.

VP9 is usually supported in hardware decoding in modern PC.

AVC1 will be used instead which is usually under hardware decoding.

Tests: