variant.json

{
  "apps": {
    "Twitter":
      {
        "origin": "https://mobile.twitter.com",
        "manifestURL": "https://mobile.twitter.com/cache/twitter.webapp",
        "installOrigin": "https://marketplace.firefox.com",
        "etag": "\"3471914f48f497d06248794ae4d4dc2d\""
      }
  },
  "operators": [
    {
      "id": "mobizilla",
      "mcc-mnc": [
        "310-260",
        "311-261"
      ],
      "apps": [
        {
          "id": "Twitter",
          "screen": 1,
          "location": 4
        }
      ],
      "support_contacts": "mobizilla/mobizilla_support_contacts.json",
      "default_contacts": "mobizilla/mobizilla_contacts.json",
      "wallpaper": "mobizilla/mobizilla_wallpaper.png",
      "keyboard": "mobizilla/mobizilla_keyboard.json",
      "network_type": "mobizilla/mobizilla_network_type.json",
      "known_networks": "mobizilla/mobizilla_known_networks.json"
    }
  ]
}