Examine source code of Google Maps Review Exporter

{
  "manifest_version": 3,
  "name": "Google Maps Review Exporter",
  "version": "1.0.0",
  "description": "Export loaded Google Maps reviews to CSV/JSON and summarize themes and sentiment locally.",
  "browser_specific_settings": {
    "gecko": {
      "id": "gmaps-reviews@maker-label-studio",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_title": "Export Google Maps reviews",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.google.com/maps/*",
        "*://www.google.co.uk/maps/*",
        "*://www.google.co.jp/maps/*",
        "*://www.google.ca/maps/*",
        "*://www.google.com.au/maps/*",
        "*://www.google.de/maps/*",
        "*://www.google.fr/maps/*",
        "*://www.google.es/maps/*",
        "*://www.google.it/maps/*"
      ],
      "include_globs": [
        "*://www.google.*/maps/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}