Examine source code of QuickNotes

{
  "manifest_version" : 2 ,
  "name" : "Quick Notes",
  "description" : "A simple browser extension to take quick notes.",
  "version" : "5.0",
  "browser_action" : {
    "default_popup" : "popup.html"
  },
  "permissions" : [
    "storage" 
  ],
  "icons" : {
    "16" : "icons/icon16.png",
    "48" : "icons/icon48.png",
    "128" : "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf89a398-8fbf-4ee6-a31a-0cca690ead41}"
    }
  }
}