Examine source code of Auto Cookie Decliner

{
  "manifest_version": 3,
  "name": "Auto Cookie Decliner",
  "version": "0.1.0",
  "description": "Lehnt automatisch optionale Cookies ab und verhindert ungewollte Datenweitergabe.",
  "permissions": [
    "activeTab",
    "tabs",
    "scripting"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "auto-cookie-decliner@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "action": {
    "default_title": "Auto Cookie Decliner",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    }
  ]
}