Examine source code of Noise Filter

{
  "manifest_version": 2,
  "author": "Rhys Edwards",
  "name": "Noise Filter",
  "description": "Noise Filter is an extension for your web browser that hides the comment sections from popular news and social media websites.",
  "version": "2.4",
  "icons": {
    "16": "icons/icon16.png",
    "20": "icons/icon20.png",
    "25": "icons/icon25.png",
    "30": "icons/icon30.png",
    "40": "icons/icon40.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "js/polyfill/browser-polyfill.min.js",
      "js/background/coverage.js",
      "js/background/background.js"
    ]
  },
  "browser_action": {
    "default_popup": "views/popup/popup.html",
    "default_title": "Noise Filter"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/polyfill/browser-polyfill.min.js",
        "js/content/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "tabs",
    "storage"
  ],
  "web_accessible_resources": [
    "style/css/content.css"
  ]
}