For people also encountering the verification error, remove the existing version and re-add the extension here. You can also check out the GitHub issue for further information about why it happened and alternatives. The GitHub URL pathname to that is /FrankerFaceZ/FrankerFaceZ/issues/1644

If you use twitch regularly or even occasionally, this is a must have add-on!

Great extension, shame on mozilla's incompetence on reviewing updates. Guess I'll switch to the user scrips

The best and only needed Twitch extension. So many settings, so many ways to customise, shows all emotes of other extensions, lets you hide nonsense you don't want to see, fully revamp things, it's the best <3

EDIT: clearing twitch cache makes the extension work again.

I love how much annoying stuff this lets me disable on Twitch.