>>33340345the extension author runs a server to host dislikes, so when you press dislike you send something like:
>youtube video id>user idand they will add +1 dislike based on youtubeId and userId to that video on their database. When another extension user uses the extension they fetch that number and render it on the screen. Basically you're looking at your own little world with no real dislike information other than from other extension users.
I tried to get around it to and did a lot of research, it doesn't work.
Read the first section in the faq for this extension:
https://www.returnyoutubedislike.com/faq 
