Hello,
unfortunately I have to deactivate this AddOn to protect me against spam reviews. During the last months a lot of reviews stated that this AddOn do not work and pushed me to delete it.
I don’t want to waste my time by selecting these reviews, answer them, getting no reply and finally let delete them.
But with the upcoming releases of Firefox next year this AddOn depreciates because of missing FavIcon API. So the end of this AddOn is only a question of time.
Sorry for that.