Examine source code of Flash CounterUp

{
  "manifest_version": 2,
  "name": "Flash CounterUp",
  "version": "2.6.4",
  "description": "Votre nouvel assistant pour compter automatiquement vos actions.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{af835e4a-13d9-4869-b005-f556de3649c1}",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "author": "Henry J.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png"
    }
  }
}