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

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.

Flat out does nothing on youtube, codec is still AV1.

Not only would videos not load, but it continuously tried to play an ad for a specific adblocker when enabled

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.

stopped working now (probably beacause youtube did something). if you use this loading parts of the video will just get slower.

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".

Работает, но каждые 10 секунд пропадает звук на 2 секунды....

Great can work on Firefox for Android too

좋아요

Works as advertised, can block .h264 to fix issues with AVC1 playback in Firefox.

Blm coba

супер

Works well on Firefox for Android.

Great extension but sometimes i need to refresh YouTube page to apply the loudness normalization remover.