Alfter loggin in with username and password skript seems to stuck -> nothing goes -> no login
With TOR Browser 6.5.2 it worked.
Deactivating https everywhere and noscript doesn´t change this error.
Thanks Fly Boy,
Your answer is right. In TOR Browser 6.5.2 I had security settings on middle, in 7.0.1 you have to set security settings on low to run protonmail. In 7.0.1 security behavier of TOR Browser is different than in 6.5.2. In 6.5.2 Protonmail was also running with security setting "middle".