Examine source code of Instagram Cleaner

{
  "manifest_version": 3,
  "name": "Instagram Customizer",
  "version": "1.0",
  "description": "Instagramの要素を非表示にできる拡張機能",
  "permissions": [
    "storage"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "設定を開く"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "instagram-customizer@yourdomain.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}