BUG - Dashboard not longer working after upgrade to SFOS 18.0.0 EAP2 in Firefox

Question

Good afternoon, 
 after upgrading from SFOS 18.0.0 EAP1-Refresh1 to SFOS 18.0.0 EAP2 the dashboard of the firewall ( XG software on Intel hardware ) via browser is not longer working in Firefox ( v.70.0.1 ). The error message says :

Its working fine from Sophos Central via Firewall manager, even for Firefox 
 Edge is also working fine from the website and Central.

aapercy · Answer

I have seen similar on v17 when accessing using a URL that was CNAME of what is configured on the firewall. 
 Accessing direct to the DNS name configured on the device works fine.