we have just setup a z2jh instance on azure including authentication via Azure Active Directory. Curiously we discovered that it is possible for users to login via Safari or Edge but not via Firefox or Chrome.
From FF and Chrome users just get an 500 after they sign in via Azure.
FF also shows some warning about the authentication cookie not being market SameSite and Secure but also shows claims the cookie is expired.
Chrome does not seem to show any helpful error message.
I tried to enable all cookies for all sites in both Chrome and FF but this did not help.
Any ideas what to do or how to debug this?