This is cool. Today I was forced to create an account for academia.edu to download a paper I needed. The combination of private-relay and FireFox's password generation made this trivial and I was then able to easily turn off forwarding when they started to email me. And if I ever go back, I still have those credentials available if needed.

Good idea but this add-on is currently useless for most people:

> Sorry, the Private Relay Beta is currently by invitation only. Please check again later.