I just signed up for Prime here and finding that I could not natively watch videos on 2x is nearly a show stopper for me. :(
I watch all farsight youtube videos on 2x since they are not so word dense as the remote viewers spend half the time finding words and not talking. After a bit of playing around I found this Google Chrome extension that actually worked.

https://chrome.google.com/webstore/detail/video-speed-controller/nffaoalbilbmmfgbnbgppjihopabppdk

After installing the extension, reload video page and a control overlay will appear on the top left of video where you can click + to speed up video. You need to hover mouse in top left corner for the controls to show. The extension has a few options you can set as well.

To many videos here to watch at 1x
I would never get through them. Not enough time. Now that we have 2x, I might have a chance. :)

Enjoy,
Ben

Awesome, thanks for the solution.

Thank you so much, Ben! That was a bummer for me, too.

Thank you! I actually use Firefox, but I checked an was available for it... installed it and works :)

O_O
THANKS A LOOOOOOOOOT.
didn't know there was an addon doing this (didn't search actually......), but this is JUST what i needed here.