Examine source code of LeadGen

{
  "manifest_version" : 3 ,
  "name" : "LeadGen",
  "version" : "1.7",
  "description" : "Productivity tool to extract and organize publicly visible contact details from active web pages.",
  "browser_specific_settings": {
    "gecko": {
      "id": "leeadgen@gmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action" : {
    "default_popup" : "lg_scraper.html",
    "default_icon" : {
      "16" : "icon16.png",
      "48" : "icon48.png",
      "128" : "icon128.png",
      "256" : "icon256.png"
    }
  },
  "permissions" : [
    "activeTab" ,
    "scripting" 
  ],
  "content_security_policy" : {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "host_permissions" : [
    "https://leadgen.nanops.in/*" ,
    "http://localhost:3000/*" 
  ]
}