Allows you to set playback speed to any value (from 0.25x to 10x)
Coursera's video player normally caps the playback speed to a maximum of 2x. With this extension, the playback speed can be increased to any desired multiplier from 0.25x to 10x.
The keyboard shortcuts are listed below:
Space: Play/Pause
Up: Increase Volume
Down: Decrease Volume
Left: Skip Back
Right: Skip Forward
F: Toggle Fullscreen