Hide video duration on YouTube by Denis

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_extension_name__",
  "version": "1.0.4",
  "default_locale": "en",
  "description": "__MSG_extension_description__",
  "icons": {
    "16": "src/icons/300.png",
    "48": "src/icons/300.png",
    "128": "src/icons/300.png"
  },
  "background": {
    "service_worker": "src/service-worker.js",
    "type": "module"
  },
  "action": {
    "default_popup": "src/toolbar/popup.html"
  },
  "permissions": [
    "activeTab",
    "declarativeContent",
    "scripting",
    "storage"
  ],
  "optional_host_permissions": [
    "http://www.youtube.com/",
    "https://www.youtube.com/"
  ],
  "options_ui": {
    "page": "src/options/index.html"
  }
}