Examine source code of No Youtube

{
  "description": "Removes Recomended Video and Discussions",
  "manifest_version": 2,
  "name": "No Youtube",
  "version": "1.1resigned1",
  "homepage_url": "https://github.com/shashwatdixit124",
  "icons": {
    "48": "icons/no_youtube-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js",
      "storage.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "toolbar/page.html",
    "default_icon": {
      "48": "icons/no_youtube-48.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{69cfa21b-f49d-4e16-a435-68c5ebe95e3b}"
    }
  }
}