To restore animated thumbnail previews, requires inline previews to be disabled in your YouTube settings. Note: not Greasemonkey compatible. v2.0 adds fallback option of a still image carousel for the homepage where YouTube has changed their data structure to no longer provide an_webp animated thumbnail urls, which is affecting some users; for such users non-homepage pages are unaffected and continue to use the an_webp animated thumbs.
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Hello,
To restore animated thumbnail previews on YouTube, you can try using a userscript with a userscript manager extension like Violentmonkey. Here’s a quick fix:
Install Violentmonkey: Add the Violentmonkey extension to your browser.
Install the Userscript: Use this userscript: Restore Animated Thumbnail Previews.
Enable the Script: Follow the instructions to enable the script in Violentmonkey.
This should restore the animated thumbnail previews for you.
Best regards,
Retefo Henry
But today it's working again!