FreeNAS 11.2 first visit via Firefox on localhost and adding first admin user

"Firefox? Why Firefox!?" Good question, but it's what FreeNAS recommends for 11.2 for some reason. I'm running Firefox on the same computer that is "hosting" the virtual machine that FreeNAS is running in (for minimal firewall config). It's wise to create a user with "sudo" privileges before doing anything else in FreeNAS. (By the way, only "root" has access to the web-GUI.)

FreeNAS 11.2 from scratch, part 1: make your USB booter

FreeNAS 11.2 from scratch, part 2: create a user & pool of disks, configure & share its dataset

creating FreeNAS boot-USB with VirtualBox

Installing FreeNAS to (virtual) boot-disk in VirtualBox (for tryout/testing purposes)

adding virtual disks to FreeNAS VM in VirtualBox

FreeNAS 11.2 install Plex server plugin with mountpoint outside its Jail (and group ownership trick)

starting FreeNAS in VirtualBox and port forwarding so it's accessible

FreeNAS 11.2 first visit via Firefox on localhost and adding first admin user

FreeNAS 11.2 creating RAID-style pool of disks and setting ownership of its default dataset