Examine source code of DNScope

{
  "manifest_version": 2,
  "name": "DNScope",
  "version": "1.0",
  "description": "A sleek DNS resolver and lookup tool with DoH/DoT support.",
  "permissions": [
    "activeTab",
    "https://dns.google/*",
    "https://cloudflare-dns.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "DNScope"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{16256241-571e-4794-8179-18b34cc69a0c}"
    }
  }
}