Examine source code of eMag No Promo

{
  "manifest_version": 2,
  "name": "eMag No Promo",
  "version": "1.0",
  "description": "Removes sponsored products from eMag listings.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.emag.ro/*",
        "https://www.emag.hu/*",
        "https://www.emag.bg/*"
      ],
      "js": [
        "script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@emagNoPromo",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}