Examine source code of Lol Stream Browser

{
  "manifest_version": 2,
  "name": "Lol Stream Browser",
  "version": "0.0.2resigned1",
  "description": "An extension to find League of Legends livestreams",
  "icons": {
    "48": "icons/lol-stream.png"
  },
  "applications": {
    "gecko": {
      "id": "lolstreambrowser@mozilla.org",
      "strict_min_version": "45.0"
    }
  },
  "browser_action": {
    "default_icon": "icons/lol-stream.png",
    "default_title": "LoL Stream Browser",
    "default_popup": "popup/choose_stream.html"
  }
}