What's the name of the addon?

I recall h264ify but not sure about it

wing-_-nuts a day ago | parent | next [-]

Yep, that's what I use. It took youtube from using 100% cpu, to the point where my little xps13 was thermal throttling, to 50% cpu running 1080p at 2-3x speed.

	▲	yonatan8070 a day ago \| parent [-]
		Out of curiousity, what CPU do you have in that XPS 13?

▲

nine_k a day ago | parent | prev [-]

What I run is https://github.com/alextrv/enhanced-h264ify

I looked now and noticed that I actually reject VP8 and VP9 and accept AV1. I run Linux on a Ryzen 4750U, for the record. It did not have trouble chewing through VP8 / VP9 without skipping frames, but it ran unpleasantly hot.