Examine source code of Password Generator

{
  "manifest_version": 3,
  "name": "Passworder",
  "version": "2",
  "description": "Generates a password with a specified length.",
  "icons": {
    "48": "icon.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default-title": "Passworder"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "mahdi9almusaad@gmail.com"
    }
  }
}