Examine source code of Hidrobtiobtobiso

{
  "name": "youtube videos comments hider",
  "version": "3.0",
  "manifest_version": 2,
  "description": "",
  "icons": {
    "16": "linkicon.png",
    "32": "linkicon.png",
    "48": "linkicon.png",
    "128": "linkicon.png"
  },
  "browser_action": {
    "default_icon": "linkicon.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "https://*.youtube.com/*"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "activeTab",
    "nativeMessaging"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9b0b4103-dd31-4c24-9bb8-7c0bbd07d51a}"
    }
  }
}