Examine source code of IMDB Google

{
  "manifest_version": 2,
  "name": "IMDB Google",
  "version": "1.0",
  "description": "Creates IMDB ratings and star count on a google search for a movie or a tv show",
  "browser_specific_settings": {
    "gecko": {
      "id": "ovicronofficial@gmail.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.google.com/search?*"
      ],
      "js": [
        "imdbgoogle.js"
      ]
    }
  ],
  "permissions": [
    "https://www.omdbapi.com/*"
  ]
}