Examine source code of Maps Spritkosten Rechner

{
  "manifest_version": 3,
  "name": "Maps Spritkosten Rechner",
  "version": "1.0",
  "description": "Berechnet Spritkosten direkt auf Google Maps.",
  "permissions": [
    "storage"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon-48.png"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.google.de/maps/*",
        "*://www.google.com/maps/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "spritkosten-rechner@lupluv.dev",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}