What does HackerNews think of videospeed?

HTML5 video speed controller (for Firefox). WebExtensions port of Video Speed Controller Chrome extension.

Language: JavaScript

I've had to use some browser extensions for 3-4x speeds. Anything that is HTML5 enabled video will be supported by it. Unfortunately I don't have a solution for anything on the phone :/

The one I use for desktop is https://github.com/codebicycle/videospeed

Here's the fork that added Firefox support (https://github.com/codebicycle/videospeed, https://addons.mozilla.org/en-US/firefox/addon/videospeed/), and it's saved me so much time it's absolutely ridiculous at this point.
I'm using https://github.com/codebicycle/videospeed

This extension adds keyboard shortcuts as well as a UI to all elements (YT and other sites). I have 'G' set playback rate to 2.2x.

Video Speed Controller is one, works on HTML5 Video (including YouTube, but not limited to it).

For FireFox: https://github.com/codebicycle/videospeed

I think, forked from Chrome: https://github.com/igrigorik/videospeed

There are addons for Chrome / Firefox [0] that map keyboard shortcuts to playback speed control over any HTML5 video. It works amazingly well.

[0] https://github.com/codebicycle/videospeed

You can use this extension to change speed of all HTML5 videos: https://github.com/codebicycle/videospeed