Examine source code of Exportar Ponto ODS

{
  "manifest_version": 2,
  "name": "Exportar Ponto ODS",
  "version": "1.0",
  "description": "Gera planilha ODS com marcação automática de sábados e domingos.",
  "permissions": [
    "activeTab",
    "downloads",
    "storage",
    "https://ims.backoffice.silsistemas.com.br/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-16.png",
      "48": "icon-48.png",
      "128": "icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "*://ims.backoffice.silsistemas.com.br/*"
      ],
      "js": [
        "inject.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "raposa@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}