Examine source code of Password Generator

{
  "manifest_version": 2,
  "name": "Password Generator",
  "version": "1.0",
  "description": "Generate secure passwords in popup",
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6b11cd0c-feac-4458-95c7-25bff1ff3b1f}",
      "strict_min_version": "111.0"
    }
  },
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_title": "Password Generator",
    "default_popup": "popup.html",
    "default_icon": {
      "64": "icon64.png",
      "128": "icon128.png"
    }
  }
}