Makes YouTube stream H.264 videos instead of VP8/VP9 videos
Try h264ify if YouTube videos stutter, take up too much CPU, eat battery life, or make your laptop hot.
By default, YouTube streams VP8/VP9 encoded video. However, this can cause problems with less powerful machines because VP8/VP9 is not typically hardware accelerated.
In contrast, H.264 is commonly hardware accelerated by GPUs, which usually means smoother video playback and reduced CPU usage. h264ify makes YouTube stream H.264 videos instead of VP8/VP9 videos.
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Works really well on my pc. Now i can watch youtube seemlessly
用户
don't work.
Costas
Works great.
网友
Всем советую данное расширение, если у вас в видео на ютубе тормозит картинка, но при этом звук идёт нормально (у меня была именно такая проблема - с недавнего времени начала тормозить картинка на стримах, но звук шёл нормально). Перепробовал всё что только можно, и только это расширение помогло мне исправить проблему.
Sourav
There's a serious problem with this specific addon. If you open any youtube channel (just any channel home page, like techquickie for example), the page will just be blank. Video and everything else loads fine with only 1080p options and stats for nerds shows avc1 is loaded, which is good.
Hue
After installing this addon, 60fps no longer works. Even when I uninstall it again, or reinstall Firefox. I don't know what it did, the switch to H264 worked fine, but even rolling back everything the videos are locked to 30fps with no way to fix this.
WolfWilh..
A very useful extension for those with low internet speed
Shivam
its good but it dont support higher than 1080p
Bashie
I am SO done with YouTube's abysmal ways of doing things as they want to. Thanks tons.
GamerZOG
Наконец-то 4к видео можно смотреть.
VL
Great for old laptops! Reduces battery drain with lowering the CPU usage as this add-on forces the video in YouTube to play with h264 instead of fancy VP9. Also you want to block 60fps? - You're in!!!
Nova
Solved the video stutter issue caused by forced 60fps on 720p and higher definition videos on YouTube after enabling the "block 60fps video". Thank you. I've checked the source code on the provided github link and it looks clean. I would recommend recommending this to anyone having the same issue.
Sred
The best extension to block 60fps videos, on my older computers.
网友
Спасибо, в 60 смотреть видео невозможно, постоянно заикается. Свою функцию выполняет просто отлично.
用户
Thank you! 60fps block works perfectly on FF72.
Bullsqui..
I have a 2014 MBP with a Haswell CPU that supports h264 hardware acceleration, but doesn't support vp9. Before this extension, 1080p60 VP9 playback would cause high CPU usage and loud fan noises, but now I can watch 1080p60 h264 in silence, and even 2x speed works fine. The only downside is that quality higher than 1080p is not available in h264 on YouTube, but that's ok since I couldn't play anything higher than 1080p reliably anyway.
SillyWre..
Fixes high CPU usage on YouTube. Highly recommend. Also video loads faster and a lot more video buffered, which is perfect for those who still have dsl instead of fiber optics.
用户
Fixed Youtube for me, thanks. VP9 playback is ass.
SaltPapp..
Firefox now uses GPU on YouTube videos and that makes a huge difference when watching videos whilst doing CPU intensive workloads for me. Thank you Dev! <3