Examine source code of YouTubeBlock

{
  "manifest_version": 3,
  "name": "YouTubeBlock",
  "version": "0.3.0",
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "contextMenus",
    "scripting",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/",
        "https://www.youtube.com/watch*",
        "https://www.youtube.com/results*"
      ],
      "js": [
        "inject.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube.block@codegoy",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}