Examine source code of Youtube Video Threshold

{
  "manifest_version": 3,
  "name": "YouTube Video Filter",
  "version": "1.1",
  "description": "Hide YouTube videos shorter than a specified duration",
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "*://*.youtube.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3b07384-d113-4c4e-a5e2-87f5d47db001}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}