Media Manipulator

There are many browser extensions and tampermonkey scripts that control HTML5 videos, but I have found none that is satisfactory. Specifically, I want one extension with the following features.

1. Ability to change playback speed and advance/rewind in time of HTML5 videos.
2. Ability to adjust the advance/rewind timestep (to eg. 0.03s)
3. Support hotkeys with Ctrl, Shift and Alt.
4. Modern look and dark theme.

So I made this extension.

Hotkeys

Plan on adding customizable hotkeys in the future, for the moment, it's hard-coded:

• A: playback speed -0.1
• S: playback speed +0.1
• C: playback speed = 1
• Z: rewind time 2s
• X: advance time 2s
• ,: rewind time 0.03s
• .: advance time 0.03s
• ;: rewind time 10s
• ': advance time 10s
• V: toggle visibility of playback speed tooltip

Developers' Note

Actually, there was one extension that allowed customizable hotkey and timestep Video Speed Controller, but it did not work with some videos on BiliBili (哔哩哔哩，b站，a website that I like to use), and do not support Ctrl, Shift and Alt keys, and do not have dark theme and look very old-fashioned.