Examine source code of No Shorts youtube

{
  "manifest_version": 2,
  "name": "No short",
  "version": "1.1",
  "description": "Supprimer les shorts de youtube.",
  "icons": {
    "48": "icons/logo-48.png"
  },
  "permissions": [
    "*://*.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "script/script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f53ad23e-1b77-41f7-8e73-fe0e7ecc8da7}"
    }
  }
}