Examine source code of LeadMomentum

{
  "manifest_version": 3,
  "name": "LeadMomentum",
  "version": "5.7",
  "description": "Import contacts from any website into LeadMomentum (GoHighLevel). Includes phone verification.",
  "icons": {
    "36": "icons/icon-36.png",
    "48": "icons/icon-48.png",
    "72": "icons/icon-72.png",
    "96": "icons/icon-96.png",
    "144": "icons/icon-144.png",
    "192": "icons/icon-192.png",
    "512": "icons/icon-512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b74bc660-2e4f-4e8f-9c5d-3a1f7d8e6b42}",
      "strict_min_version": "127.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo",
          "websiteContent"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "https://services.leadconnectorhq.com/*",
    "https://api.landlinescrubber.com/*"
  ],
  "background": {
    "scripts": [
      "browser-polyfill.min.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery.min.js",
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "LeadMomentum",
    "default_icon": "icons/icon-48.png",
    "default_popup": "popup/index.html"
  }
}