h264ify

Makes YouTube stream H.264 videos instead of VP8/VP9 videos

Total ratings

4.42 (Rating count: 212)

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
  • Significantly reduces CPU usage while streaming high-definition videos.
  • Improves video playback smoothness and eliminates lag issues.
  • Keeps laptops cooler during video playback.
  • Restores full-screen video quality without pale appearance.
  • Works effectively on older hardware that lacks support for modern video codecs.
Cons
  • May cause issues with playing videos above 1080p resolution.
  • Sometimes fails to block newer codecs like AV1, leading to higher resource usage.
  • Reported failures to work in multiple instances.
  • Problems with installation/setup despite correct configuration.
Most mentioned
  • Improves video playback performance by reducing CPU usage.
  • Issues with playback resolution options when the extension is enabled.
  • Works well on older laptops with limited codec support.
See reviews for h264ify on Firefox Browser Add-ons
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Recent reviews

Recent rating average: 4.30
All time rating average: 4.42
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Rating filters

5 star
77% (136)
4 star
7% (12)
3 star
3% (6)
2 star
3% (6)
1 star
9% (16)
Date Author Rating Comment
2024-11-07 Firefox user 13504848
2024-11-05 spayder26
2024-10-25 Firefox user 18655312
2024-10-24 Kakyouin
2024-10-14 Neleot Perfect. Got an i5 6300hq, was having ~50% CPU usage while watching 1080p@60fps. With this i got 25-30% CPU usage. Thank you!
2024-08-08 SineWave
2024-08-03 cavadao77 This add-on fixed my problem with YouTube immediately, I have a high end PC and it was freezing itself at 2x 1080p60. Thank you guys!
2024-06-22 Vitaly Zdanevich Not working anymore - I still have av1.
2024-06-16 SeriesE233 A must have for old laptops with no VP9 hardware decoding support. Just make sure that you can only watch videos up to 1080p.
2024-05-13 Lord Fong Great improvement, in terms of keeping my laptop much cooler. Great extension. 👍
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