16-10-2023 working solution:

There has been an update for the extension which requires you to install it manually for now:

- remove the original add-on from Firefox
- download firefox.zip from https://github.com/Anarios/return-youtube-dislike/releases/tag/v3.0.0.11
- go to about:addons
- Under the cogwheel - click on 'Debug Add-ons'
- click on Load Temporary Add-on...
- select firefox.zip

I recommend to check reddit r/youtube where I found this solution.

Doesn't work anymore :/

Doesn't work anymore

Currently not working! It's been such a great thing to have for a long time though. I hope the bugs can be worked out soon!

Not working, and is not the first time that the same happened again...

It used to work, but when I first downloaded it there was a message about how youtube was going to completely remove the bits that were previously just hidden which this addon relied on. Anyway, looks like those bits have now been fully removed.

Parou de funcionar

Doesn't work

Stopped working.

Really great add-on, but it no longer works

No funciona

Looks like the addon does not work in Firefox 118.0.2 under Linux :-(

LISTEN HERE GUYS: while this add-on does not work anymore (for now), consider visiting the official website and installing either the latest version OR using the userscript!

Till it is back working users can try addon Thumbnail Rating Bar for YouTube
it shows you likes and dislikes before even clicking on a video.