If you delete a virtual datacenter, the firewalls will be deleted in the cloud provider or network virtualization system but they will still be present in the platform.
To delete a firewall from the platform:
Go to myCloud Virtual datacenters → All → Network → Firewalls or go to Locations view
Select a cloud location
Firewalls that are colored light gray exist in the platform only, not the provider
Select a firewall
Click the trash delete button
