[jakobdabo]

I don't think you can use Proton without JS. You need JS for cryptography; the emails get encrypted/decrypted/signed/verified on client-side.

[vages]

Of course; should have been obvious.

Perhaps there is a greater reliance on scripts in the new version, but this makes it seem more likely that they've abandoned the Tor version.

[pera]

I use proton-bridge and a normal email client, although I've never tried to use it with Tor.