It may not be SUPER accurate but gives a good "mini preview" to what you might expect from the video.

I don't see the number of dislikes below videos. It worked for some time, but not anymore :(

Gooooooooooooood

Have been using this add-on for a half of year or even more and it is still one of my favourite add-ons out there.
Update: Thanks for update. Glad that mozilla finally approved it. Didn't think that I would miss ability to see dislike count this much.

Finnaly i can see the tremendous amount of dislikes on Disney videos again

...

An addon that actually does it job, I'm amazed.
Only problem is that the like-dislike ratio progress bar doesn't work, aside from that, good addon.

Thank you for getting back disklikes with this great extension but the like/dislike progressbar is not displayed anymore since today with the new youtube interface.

However, the disklikes and likes counter are still displayed correctly.

Keep up your great work.
Greets from France