I would like to see the firefox instance that launches in GUI mode limited to local non-routable addresses and unraid.net only. Ideally any attempt to browse elsewhere would redirect to instructions on setting up a VM that could be accessed through the browser.

Or at least some kind of Obvious warning explaining that it isn't wise to use it to browse from. 

EG: A new tab opens up a default (local) page that states the above. Sure that it's doable via the default Firefox settings.

Needs to allow a whitelist if implemented, there will always be use cases that will require access to non-local addresses... particularly for troubleshooting and recovery.

27 minutes ago, tjb_altf4 said:

Needs to allow a whitelist if implemented, there will always be use cases that will require access to non-local addresses... particularly for troubleshooting and recovery.

I guess I need to flesh out my request a little more. I'm not saying to permanently neuter the browser, just make the default settings extremely restricted, and bypassing those restrictions non-trivial on each restart. Maybe just populate a policies.json file. https://support.mozilla.org/en-US/kb/enforcing-policies-firefox-enterprise

{
  "policies": {
    "WebsiteFilter": {
      "Block": ["<all_urls>"],
      "Exceptions": ["http://example.org/*"]
    }
  }
}