Examine source code of MidIP

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "midicix.contact@gmail.com"
    }
  },
  "name": "MidIP",
  "description": "Return your public Address IP",
  "version": "1.0.1",
  "developer": {
    "name": "Midicix's Corporation",
    "url": "https://midicix.github.io/"
  },
  "icons": {
    "48": "icons/midIP.png"
  },
  "action": {
    "default_title": "Click to read your IP address and other related informations",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/midIP.png"
    }
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+I"
      },
      "description": "Make a go link for URL in address bar"
    }
  },
  "permissions": [
    "clipboardWrite"
  ]
}