this is useful

Can confirm the high cpu usage issue a user posted below. It seems like it happens if used in combination with Zoom Page WE extension. If I disable one or the other the problem doesn't occur.

Using the Return Youtube Dislike userscript doesn't cause the issue so I'm going to use that for now instead.

This video is another one that causes problems https://www.youtube.com/watch?v=F03gEzdLa2g

Consistently causes excessive CPU usage, but only on certain youtube videos, such as this one:
https://www.youtube.com/watch?v=F7XAQNRn638
Couldn't understand what differentiates these offending videos from the majority of videos, where the extension works fine. The youtube's GUI bar with likes and dislikes sometimes moves to the left or right periodically when playing these offending videos.

as people are commenting here, isn't working since november 08

Extension was working perfectly until 08.11.2022, hoping for a quick update/fix.

Seem to work ok when saveform.net plugin is off, but doesnt work at all when its on. Disabling saveform is not an option. I hope you would fix this.

worked until Youtube's new ui came, messing the whole thing up, would need an update

This is a crtitical extension for anyone extensively using YouTube. Nothing too fancy on the surface, it allows dislikes to be displayed again.

Under the hood there's quite a bit going on, and unfortunately it doesn't always work smoothly, sometimes dislikes are still not visisble and accuracy isn't garaunteed. Still, the developer's efforts are greatly appreciated and when it does work it adds back a lot of the value YouTube has been trying to take away from its platform.

(edited)
9-28-22 currently a bit buggy(youtube might be fighting it[although it works on chrome]{many videos have disabled by owner on the dislike count) but when it works it is better than the oringal dislike feature

it kinda works, but as of today i have noticed it to display dislikes like this "En tykkää205" (im using Finnish Youtube so translated it would be "Don't like205"
so it does display the number of dislikes, but it adds that "en tykkää" or "don't like" text in front of the number as well.
i also saw this behavior on both Chrome and edge, so i doubt it is something wrong on my Firefox settings or something.
Edit: issue seems to be resolved and now there is no "en tykkää" or "Don't like" texts, only the number and 👎🏿
Edit 2: nope! it's back again!