Examine source code of Test Extension V2 Public

{
  "manifest_version": 2,
  "name": "Test Extension V2",
  "version": "1.0",
  "description": "Prueba de content script en Firefox ESR",
  "content_scripts": [
    {
      "matches": [
        "https://lidasur.com.uy/cotiza.php*"
      ],
      "js": [
        "main.js"
      ],
      "css": [
        "estilos.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc66fa39-0843-48e9-acb5-85aa19cf8c1c}"
    }
  }
}