Examine source code of Hackernews No Comments

{
  "manifest_version": 2,
  "name": "Hackernews No Comments",
  "version": "0.0.1",
  "description": "Removes comments from hackernews",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://news.ycombinator.com/*"
      ],
      "js": [
        "browser-polyfill.min.js",
        "hn.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "hnnc@wginsberg.ca"
    }
  }
}