To restore animated thumbnail previews. Requires inline video previews to be disabled in your YouTube user settings (Go to https://www.youtube.com/account_playback and set "video previews" to disabled). Not Greasemonkey compatible. v5 Add new method for getting an_webp GIF-style thumbs when not available in YT's new homepage UI or subscription page UI.
< Opiniones de Restore animated thumbnail previews - youtube.com
Thanks for letting me know. It seems the latest addition I made doesn't work on Chrome+Tampermonkey for some reason. Works OK in Firefox+Tampermonkey. In any case I've rolled that back so you should be ok with upgrading to v5.8 to fix.
Thanks! Now it's working.
It's stop working for me on the main page in v.5.7 :( I'm using Chrome 140.0.7339.128 and Tampermonkey. Works only in the right side column on the video page and in the history.