This is not a "privacy" pass but "Cloudflare Pass".

Just say "NO" to cloudflare website owners.
You should not input your personal information to cloudflared websites.
You should not trust padlock HTTPS icon because cloudflare website is totally insecure.

Just read this ticket to understand how Cloudflare works and why this add-on is bad.
https://trac.torproject.org/projects/tor/ticket/24351

This add-on's developer like to delete negative review like this. Deleting this review = Admitting your crime. Stop it.