Examine source code of Nosurf youtube

{
  "manifest_version": 2,
  "name": "Nosurf youtube",
  "version": "1.1resigned1",
  "description": "An extension that effectively removes any videos recommended by youtube's algorithm. It's goal is to stagger absent mindedly stumbling over from one video to the other.",
  "icons": {
    "48": "icons/no-recs-48.png",
    "96": "icons/no-recs-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "nosurf-youtube.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c7fe793-ecb4-4e9c-bca7-346ceb1ab69e}"
    }
  }
}