Examine source code of Watch UK TV

{
  "description": "Watch UK TV",
  "manifest_version": 2,
  "name": "Watch UK TV",
  "version": "1.55resigned1",
  "homepage_url": "http://redrobe.com/mike",
  "icons": {
    "48": "icons/tv.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/tv.png",
    "default_title": "Watch UKTV",
    "default_popup": "data/channels.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid0-NGlaLzz7tW1KGqLDjiKAmXkjSpA@jetpack"
    }
  }
}