Examine source code of Favorite Quotes Manager

{
  "manifest_version": 2,
  "name": "Favorite Quotes Manager",
  "version": "1.0",
  "description": "Save and manage your favorite quotes.",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9aba0972-03af-41f7-a419-39f68b7cf4b2}"
    }
  }
}