Examine source code of Piratrack - Price Tracker

{
  "manifest_version": 3,
  "name": "Piratrack - Price Tracker",
  "version": "1.3.10",
  "description": "Agrega gráficos de historial de precios y la opción de recibir alertas sobre caídas de precios en todos los sitios de productos",
  "icons": {
    "128": "icons/logo.png"
  },
  "action": {},
  "background": {
    "scripts": [
      "assets/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "exclude_matches": [
        "*://*/*.json",
        "*://*/*.pdf",
        "*://*/*.jpeg",
        "*://*/*.jpg",
        "*://*/*.png",
        "*://*/*.svg"
      ],
      "js": [
        "assets/content.js"
      ],
      "css": [
        "assets/css/content.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*",
        "fonts/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{077500ef-f05a-4f54-9745-ec9dccfc8e7e}"
    }
  }
}