Mdf said:
Uninstalled the old version and reinstalled the new version. Alright, starting to see function. Clicking on the icon changes OwO to XwX but it only does so for the top most tag (often the artist).

Курва!

Should be working now, but cannot test it

Well, which version of browser do you use? I installed latest from their site and can't reproduce it.
The previous problem was related to determining which OwO button was clicked to change it's title, and it seems like fix didn't help. Still, it has to be able to maintain list of subscriptions, just can't refresh their titles.
You can try checking it opening combatfox.js file in text editor and making line "DEBUG_LOGGING" look like "const DEBUG_LOGGING = true;". After reloading extension it will show the list of tags in the console after every button click.
No need to clear cookies, they are not used.

Dunno how it works, should we probably move to PM?