2023-12-14. To restore animated thumbnail previews, requires inline previews to be disabled in your Youtube settings. Note: not Greasemonkey compatible.
To restore animated thumbnail previews (when hover over video on main page etc). Requires inline previews (i.e. the video player previews) to be disabled in your Youtube settings.
Note: not Greasemonkey compatible. Recommendation is to use Violentmonkey. Greasemonkey hasn't had an update in 3 years so is lacking features others have and also there seems to be other compatibility issues with scripts trying to run @run-at document-start which this script requires. So the advice is this script is not Greasemonkey compatible and the recommendation is to migrate to Violentmonkey which is likewise open source but is actively maintained.
