Update to below, seems to be working very good! :D

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Works great right now, but remember, on Tuesday December 13, dislike count will be removed permanently from the Google API and then this plugin will only work with "estimation", whatever that means. Any new video published will have no way of publicly knowing the actual dislike count. Three stars for effort! :P

Works perfectly, very nice to see the dislikes again

To the Creator of this extension,
May your name be written in golden letters in the History of Mankind. Thank you for your contribution to the human society.

It works! Dislikes and the like-dislike ratio are visible.

After YouTubes dumb decision to remove dislikes, it's great that people like the creator here immediately worked on an extension to bring them back. Fight against this change by getting more people to install this extension, it can really save them from a scam video.

Return Youtube dislikes.