Firefox's built-in video player has a maximum speed of 2x. Is there any way to increase it and have that reflected in the UI? I know there's a console command for it, and it works fine, but I'd like to know if I can make it permanent with userChrome.css or about:config or something else. The console command is:
document.querySelector('video').playbackRate = 4
And no, I don't plan on watching videos at 4x speeds to accelerate the brainrot, I'm mostly just curious about how it works.