Examine source code of fly like dragon

{
  "manifest_version": 2,
  "name": "Sponex",
  "version": "1.0",
  "description": "Spotify Next",
  "default_locale": "en",
  "icons": {
    "64": "icons/gm.png"
  },
  "permissions": [
    "menus",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "test.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "arashmidos@context.com"
    }
  }
}