Ask HN: DuckDuckGo injecting Ads in Firefox extension?

It looks like DuckDuckGo is now injecting an Ad into email fields with their Firefox extension. The Ad is for their email protection service. There doesn't seem to be away to disable the Ad. It seems to be in registration forms and not login forms.

Anyone else experiencing this?

It's kinda of too bad. I like the extension otherwise, but that is a hard red line.