Examine source code of IP data

{
  "name" : "IP data",
  "short_name" : "IPdata",
  "description" : "Find out your public IP address, IP location: country and flag",
  "version" : "0.2",
  "author": "httpstuff.com",
  "manifest_version" : 3 ,
  "icons" : {
    "32" : "icons/ip32.png",
    "48" : "icons/ip48.png",
    "64" : "icons/ip64.png"
  },
  "action" : {
    "default_popup" : "popup.html",
    "default_title" : "IP data",
    "default_icon" : "icons/ip32.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ipdata@httpstuff.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "host_permissions" : [
    "https://httpstuff.com/jsip" 
  ]
}