Examine source code of IMDb to Trakt

{
  "manifest_version": 2,
  "name": "IMDb to Trakt",
  "version": "1.0",
  "description": "Adds a button to IMDb movie pages to add navigate to Trakt.",
  "icons": {
    "48": "icons/trakt-icon.png"
  },
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.imdb.com/title/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "tabs.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "imdb-to-trakt@yourdomain.com",
      "strict_min_version": "64.0"
    }
  }
}