mozilla.cfg/config/distribution/policies.json

{
  "policies": {
    "DontCheckDefaultBrowser": true,
    "Camera_BlockNewRequests": true,
    "Camera_Locked": true,
    "Microphone_BlockNewRequests": true,
    "Microphone_Locked": true,
    "Location_BlockNewRequests": true,
    "Location_Locked": true,
    "Notifications_BlockNewRequests": true,
    "Notifications_Locked": true,
    "Cookies_AcceptThirdParty": false,
    "OfferToSaveLogins": false,
    "OverridePostUpdatePage": "",
    "DisableMasterPasswordCreation": true,
    "DisableFeedbackCommands": true,
    "DisableFirefoxAccounts": true,
    "DisableFirefoxScreenshots": true,
    "DisableFirefoxStudies": true,
    "DisablePocket": true,
    "DisableProfileImport": true,
    "DisableSetDesktopBackground": true,
    "DisableSystemAddonUpdate": true,
    "DisableTelemetry": true,
    "TrackingProtection": false,
    "TrackingProtectionLocked": true,
    "SSLVersionMin_Explain": "TLS1_2"
  }
}