It works but not 100% accurate but gives you a rough estimate.

The number shown is an estimate, not the actual number of dislikes. The methodology to get that estimate is a bit questionable due to sample-bias.
Furthermore, the extension stops working every month or two.

Does NOT show the dislikes of Youtube videos.

Completely makes up it's dislike count.

thank you. a disservice to the general public from youtube for removing dislikes

Definition of "do one thing and do it well".

A good program I like to see if videos are crap in advance. As YT updates it can break and dumb people give negative reviews it seems.

5 stars.

Literally does not work lol

The add-on itself is really good, as it does what it says, flawlessy (when it works). If it doesn't work, then YouTube is to blame; their updates break this add-on. Please don't give 1 star ratings for this add-on because of YT's bs. Have some patience, Dmitry will eventually release an updated version. Thank you.

Really useful as long as it works.