Examine source code of IMDB to Vidfast

{
  "manifest_version": 2,
  "name": "stealify",
  "version": "1.0",
  "description": "Makes IMDB urls redirect to vidfast.pro",
  "content_scripts": [
    {
      "matches": [
        "*://*.imdb.com/*"
      ],
      "js": [
        "stealify.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d645e519-8763-4e98-8582-12e39891c06e}"
    }
  }
}