Examine source code of Ma Petite Liste

{
  "manifest_version": 2,
  "name": "Ma Petite Liste",
  "version": "1.1",
  "description": "Ajoutez un souhait de cadeau de n'importe quel site Web à votre liste de cadeaux sur ma-petite-liste.com",
  "homepage_url": "https://www.ma-petite-liste.com",
  "icons": {
    "48": "images/mpl48.png"
  },
  "permissions": [
    "activeTab",
    "https://ajax.googleapis.com/",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "images/mpl32.png",
    "default_title": "Ma Petite Liste",
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    "images/logo.jpg",
    "images/etoile_mobile8.svg"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{22904f0f-944e-4ea6-9594-5ccf346315a1}"
    }
  }
}