refined-h264ify

Name: refined-h264ify
Rating: 4.2 (5 reviews)
Author: Edwin Zarco

By: Edwin Zarco

Improves YouTube playback performance by using your desired codecs.

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Features & Capabilities

refined-h264ify is a powerful browser extension designed to enhance your YouTube video playback experience. By blocking VP8 and VP9 codecs, it enables the use of the widely supported H.264 codec, which benefits from hardware decoding on many devices for smoother, more efficient streaming.

Beyond its core functionality, refined-h264ify offers manual control over blocking H.264, VP8, VP9, and AV1 codecs to tailor your experience. It also supports 60fps video playback, ensuring high-quality viewing. Designed for Chromium-based browsers and Firefox, this extension is perfect for users seeking better performance and smoother YouTube playback.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

3.1.0 Last updated: 2023-05-12

Version code:

5564939

Creation date:

2023-05-11

Risk:

Permissions:

storage

Content scripts matches:

*.youtube.com
*.youtubekids.com
*.youtube-nocookie.com
*.youtu.be

Size:

19.44KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-24

Compare stats and ranking:

Ranking

# 6,582 ▼ 32

Other rankings

#18 in define keyword 12 #35 in defi keyword 35 #105 in improve keyword 34 ▲ 1#108 in performance keyword 17 #178 in marketing keyword 15 ▲ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Edwin Zarco

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/refined-h264ify/

Website:

https://github.com/Edwin-Zarco/refined-h264ify/issues

User Reviews

by 远离*****, 2025-03-30

by 远离*****, 2025-02-26

Does currently not work. When blocking VP9 and AV1 video will still play in AV1. For me this is worse than disabling just AV1 through Youtube settings and letting it play VP9 as AV1 seems to drive up CPU usage even more.

by Pa*****, 2024-03-11

View all user reviews ›

Is refined-h264ify Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

refined-h264ify requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: youtube.com, youtubekids.com, youtube-nocookie.com, youtu.be
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

refined-h264ify has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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Good **** ********* *** **** **** *******