Examine source code of Ninja Van Tracking

{
  "name": "Ninja Van Tracking",
  "description": "Track your Ninja Van Tracking Onilne",
  "manifest_version": 2,
  "version": "0.1.1",
  "browser_action": {
    "default_icon": "logo.png",
    "default_popup": "popup.html",
    "default_title": "Ninja Van Tracking"
  },
  "icons": {
    "128": "logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{395979bf-5dad-4873-a0b1-fdfa98f04388}"
    }
  }
}