Shift + p: Move to the previous video (playlist only).0 to 9: Seek to a specific point in the video (4 advances to 40% of duration, 5 to 50%, etc.).: Seek forward 1 frame when the video is paused ,: Seek backward 1 frame when the video is paused.← and →: Seek backward/forward 5 seconds.↑ and ↓: Increase and decrease volume by 5%.See the Manage extension shortcuts in Firefox, Chrome, Edge, Opera page. Alternatively, since the version 2.0.103 of Enhancer for YouTube™ you can configure a keyboard shortcut to give the focus to the video player.
Note: You can give the focus to the video player by clicking an empty space below the progress bar between the left and right controls, this way the video will not be paused. Keyboard shortcuts when the video player has the focus If you find it useful you can share the link on Facebook™ or share the link on Twitter™. Here is a list of keyboard shortcuts that will improve your user experience on YouTube™.