Hover a thumbnail at its bottom part and move the mouse horizontally to view the actual screenshots from the video
< Feedback op YT: peek-a-pic
This author has another excellent script
https://greasyfork.org/zh-CN/scripts/9252-fyte-fast-youtube-embedded-player
Log in om antwoord te geven.
This author has another excellent script
https://greasyfork.org/zh-CN/scripts/9252-fyte-fast-youtube-embedded-player