From October 12th, 2017 to October 8th, 2021, 50% user give 5-star rating, 50% user give 1-star rating. for Youtube Thumbnail Finder chrome extension.
Not working, Oct. 2021
Doesn't work as of May 2021
good
awesome
classic
Doesn't work consistently, and sometimes it doesn't work at all. I can still manually download thumbs faster than this. Fix the bugs, and make a bulk function where you can paste the channel link (instead of just the video link), and you'll have my vote.