enhanced-h264ify
Choose what video codec YouTube should play for you
Enhanced-H264ify: Optimize YouTube Playback on Firefox
Enhanced-h264ify is a Firefox extension specifically designed to optimize YouTube playback. This add-on is a fork of the well-known h264ify, designed to block VP8/VP9 codecs on YouTube and prioritize H264, a codec supported by many devices for hardware decoding. Users can manually block or allow various codecs including H264, VP8, VP9, AV1, and manage other features such as 60fps video. Works solely on YouTube platform.
Add-on stats
Manifest V3
Weekly download count: 386
Firefox on Android: Yes
Permissions:
- storage
Size: 25.57K
Full description: See detailed description
Ranking
# 882 ▼ 7
Other platforms
Not available on Android
Not available on Edge
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Effectively blocks VP8, VP9, and AV1 codecs to improve video playback performance
- Reduces RAM usage while watching YouTube videos
- Helps with video playback on older hardware
- Works as advertised in blocking H.264 issues
- Compatible with Firefox for Android
Cons
- Doesn't always work on YouTube, with some videos not loading or displaying an unsupported codec message
- Occasional audio issues, such as sound dropping out every few seconds
- May require refreshing the page for certain features to take effect
- Some users report that it stops working after updates to YouTube
Most mentioned
- Effectiveness in blocking codecs
- Video playback issues on YouTube
- Audio problems during playback
- Improvement of resource usage on older machines
- Compatibility with Firefox for Android
User reviews
Ive played a few videos after installing the add on, and checked stats for nerds which showing the codec as avc1, (which is H.264) so it does appear to be working correctly by blocking VP8, VP9 and AV1
by Mod81, 2025-02-19
by 远离中共邪教快退出党团队, 2025-02-13
by p.squa, 2025-02-12
Add-on safety
Risk impact
enhanced-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, youtube-nocookie.com, youtu.be
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of enhanced-h264ify. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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