Examine source code of FreeNyTimes

{
  "manifest_version": 2,
  "name": "FreeNyTimes",
  "version": "1.0",
  "description": "This extension speeds up reading of articles on NY times.",
  "content_scripts": [
    {
      "matches": [
        "https://www.nytimes.com/*"
      ],
      "js": [
        "magic.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{45f51f3e-b42e-40e1-b89e-9cbd21d3f940}"
    }
  }
}