enhanced-h264ify

Choose what video codec YouTube should play for you

Total ratings

4.39 (Rating count: 94)

Review summary

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
  • Helps improve performance on older hardware
  • Can resolve iGPU heating issues on certain MacBook Pro models
  • Works as intended for blocking h264 to fix playback issues
Cons
  • Does not work reliably on YouTube
  • Frequent audio issues, such as sound dropping every few seconds
  • Initial setup may require checking Firefox settings to avoid blocklisting
Most mentioned
  • Does not work on YouTube
  • Audio issues during playback
  • Improves performance for older CPUs
See reviews for enhanced-h264ify on Firefox Browser Add-ons
Upgrade to see all 102 reviews

User reviews

Recent rating average: 3.20
All time rating average: 4.39
Upgrade to see all 102 reviews

Rating filters

5 star
79% (81)
4 star
5% (5)
3 star
2% (2)
2 star
3% (3)
1 star
11% (11)
Date Author Rating Comment
2025-01-09 beepboop I have no idea what the other reviewers are talking about. Before blaming the app, perhaps you might want to take a look at your firefox's about:support settings and make sure that your settings/OS/drivers aren't blocklisting the h264 functionality. This project has made my old Sandy Bridge i5-2435M, Ivy Bridge i5-3320M and Haswell i7-4960HQ fully USABLE in the year of our lord 2025. Of course certain iGPUs aren't powerful enough even with AVC decode (thinking about my first gen Arrandale i7-640M) on 1080p, but hell, this thing just works! Thank you for continuing this project Alex.
2025-01-05 Niloss Flat out does nothing on youtube, codec is still AV1.
2024-12-30 Firefox user 18342948 Not only would videos not load, but it continuously tried to play an ad for a specific adblocker when enabled
2024-11-02 Firefox user 16081954
2024-08-17 Danz Thanks to this plugin I was able to resolve iGPU heating issue on MBP 16 2019 which is not capable of natively decoding AV1 content. I needed to disable only AV1 and keep VP9 so I still can play 4k 60fps content.
2024-08-13 Firefox user 18539128
2024-07-01 Firefox user 17412887 stopped working now (probably beacause youtube did something). if you use this loading parts of the video will just get slower.
2024-06-29 VOIIIXI On a lot of videos if I block h264 and AV1 the video won't play and it says your browser cant play this video. Add an option to "Activate VP9 when it's available".
2024-06-25 Craig
2024-05-30 Firefox user 18094775
Upgrade to see all 102 reviews