🤔 I never tried it, just checked the login page (which have displayed correctly). That said, with TOR sometimes you have to switch the routing a few times to get to an exit point that isn't banned on the sites you want to visit. Will try that with protonmail. BTW is there a tor address for protonmail? That would be something I'd expect them to have.

Their is a tor site for protonmail. Did you use that?