[jjbinx007]

YouTube is pretty shocking in Firefox, even worse with an ad blocker.

[shakna]

The experience suddenly gets mysteriously better if you switch your user agent to Chrome's, though.

[jeroenhd]

That's not my experience at all. Switching off AV1 encoded videos has made a huge difference, though.

[cosmic_cheese]

Sounds like an unnecessary polyfill.

[WD-42]

I like imagine the stuttering and jagged reflows are the result of uBlock origin violently battling the page and destroying all the ads.