Youtube recently removed the dislike to like ratio.
A video with 1M views and 100 likes for example has a low ratio (0.1%), and probably means the video is not popular.

Any video with a like to view ratio greater than 2 or 3 percent, should be all right.
However the correct ratio depends on the type of content you are watching.

Install

• License: MIT License
• Weekly downloads: 2
• Average daily users: 49
• Rating: 3.6667/5 of 3 ratings
• Created: 2021-12-03 17:51:06
• Last updated: 2022-11-01 22:10:18
• Homepage: https://github.com/amnrst/youtube-like-to-view-ratio
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/youtube-like-to-view-ratio/
• API: {00fd947e-7168-4433-bdae-2e505587ce87}