good, but it seems the arrow keys are affected. With the extension enabled, the back and forward via arrow keys is jumping 15sec instead of 5. This is really annoying.

Fixed. Thank you!

Perfect for skipping thru the "this video brought to you by our sponsors ..." where a triple click will skip 30s forward. Also helpful for quickly rewinding to see that thing you just missed.

Works great! The buttons are rightly placed and easily visible, and there is enough separation between them. There are also options to change the time seeked, as well as a convenient button to enable/disable the addon.

Exactly as described works very well and is super coinvent.