Sometimes does not start.

[SteegHobland]

I have found many times that the Youtube Center script does not have any apparent effect, even though Tampermonkey claims it is on. Other times it will kick in, but far too late. I wish for it to stop autoplay, but if it starts working after two minutes of the video have played already, and stops it at that point, it doesn't help me as much. I'd prefer for the display of the page to wait until the script is ready, and this could be useful for any userscripts I suppose, but I'm unaware of anything to set in Tampermonkey or in Firefox to do that.

I'm using Youtube Center dev build on Tampermonkey on Firefox 52 ESR.

[bulutfatih]

I have similar problem too. I have untick DASH playback, but it not working. Video don't buffering. macOS, Safari 10.1.1