Add speed buttons to any HTML5 <video> element. Comes with a loader for YouTube and Vimeo
< Video Speed Buttonsについてのフィードバック
I pushed a patch, vimeo works now. The graphical UI doesn't show and I don't have time right now to investigate that, but the keyboard shortcuts DO work. +, -, and * to reset.
Doesn't work on Vimeo anymore.