Examine source code of Hello World

{
  "manifest_version": 2,
  "name": "Hello World",
  "description": "This is my first Browser extension and you can type in your name and it will say Hi and then your name.",
  "version": "1.0.2resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{50d18785-9d59-456b-ae32-74719938c52e}"
    }
  }
}