Deleted it before I could really use it because it made the email box where the little purple star was in at the right "sticky" on top. IE, when a popup from the website popped up, the email box was on top of the popup, blocking a large part of the text and I couldn't read it. Maddening.
Hi So sorry to hear this. If you'd like to re-install the add-on you can actually disable the Relay icon in email fields by clicking the Relay add-on icon in your toolbar, clicking the gear icon, then turning off "Show relay icon in email fields on websites"
