Top-level same-day update: A Fix For Trippy YouTube Playback With Firefox Quantum 57

How YouTube looks in Firefox Quantum 57:

How it looks in Chrome:

Notice that the scrub preview looks OK in the new Firefox, but the video doesn’t.

I’ve restarted the notebook, restarted Firefox. Same result. It happens with all YouTube videos. WTF.

Same-day update: It’s not just me! Twitter:

Firefox, kick that Update out ASAP!