Examine source code of YTBShortBlocker

{
  "manifest_version": 2,
  "name": "YTBShortBlocker",
  "version": "1.0.0",
  "description": "Disable youtube short to prevent mindless scrolling.",
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad059544-1203-480b-ae7b-18da56d98978}"
    }
  }
}