Working Youtube rating bar extension needed

I found this Youtube rating bar extension for Firefox:

But it’s not working for me. I installed and reinstalled. Still not working. Does this extension work for you?

Are there other extensions that can show Youtube rating with a bar?

I don’t have any personal experience with this add-on, but there is a note about how it works and possible temporary unavailability of information over here:

OMG. Thanks for your reply. I don’t know if Elliotwaite from your link is the owner. He wrote he updated some files. Now the extension is working again. Thanks.