Perfect!

It makes browsing YouTube bearable. It makes thumbnails more reflective of the actual content within the video. It also makes browsing feel better in that I don't feel like everything is fighting for my attention, rather it feels like video are simply presenting their content and I can choose from there.

Overall, great extension, but I do have some features I'd love to see added:

The ability to change all-caps titles
Stretch the thumbnail image, so it fills out the entire box, not including black bars

Something what i wanted so long =)

You have no idea how much I've wanted an addon like this. Sure, the non-clickbait custom thumbnails might be gone, but that's a small price to pay for getting rid of "Boobies in Thumbnail CLICC NOW" thumbnails that plauge YouTube.

very very good,thank you

Small change to YouTube's UX is a bit improvement.

Indispensable para todo aquel que use YouTube habitualmente. ¡Gracias al desarrollador por esta extensión!

Works perfectly 👍
2 Things that would be cool to add are...
-When you move your mouse over the thumbnail, it shows images from the beginning, middle, and end of the video.
-The ability to view the original thumbnail when...^