iframe in new tab or window

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "iframe in new tab or window",
  "version": "0.1",
  "manifest_version": 3,
  "description": "Open an iframe in a new tab or window",
  "action": {
    "default_icon": "icon-128.png",
    "default_popup": "popup.html",
    "default_title": "iframe in new tab or window"
  },
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "64": "icon-64.png",
    "128": "icon-128.png"
  },
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "contextMenus"
  ]
}