Only 4 stars as it randomly stopped working. However it did do me well for at least a year since I got it, & this is probably just a temporary issue.

20/04/2026 Stopped working.

it has a tendency to slowdown the browser from time to time.

I'm not sure how accurate this add-on is, but it's nice to give bad videos the thumbs down with a guesstimate of how many other viewers felt the same way.

Cool, but it would be even cooler if you could see the number of dislikes in user comments and in YouTube shorts.

The phrasing "returns ability to see" implies it's getting real data from YouTube somehow. It uses its own historical and extrapolated data, which is not noted unless you read the FAQ. While the extrapolated functionality may be useful to some and technically sound, such a misleading extension description should not be "Recommended" by Mozilla. I am quite disappointed.