Examine source code of Quick google search

{
  "manifest_version": 2,
  "name": "Quick google search",
  "version": "1.0",
  "description": "The ideal script when you need to google things fast with a simple press of a key",
  "icons": {},
  "content_scripts": [
    {
      "matches": [
        "*://cachedownload.casino.pokersnai.it/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ]
}