Examine source code of Shared Notes Fun

{
  "manifest_version": 2,
  "name": "Shared Notes Basic",
  "version": "1.0",
  "description": "Shared Notes is a cool utility that helps Share study notes with study groups.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/note-logo.png"
    }
  },
  "icons": {
    "128": "images/note-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{59d6defd-f78e-49cd-8af8-d36d47736011}"
    }
  }
}