Examine source code of CommSoft URL Detector

{
  "browser_specific_settings": {
    "gecko": {
      "id": "tc@commsoft-rms.com"
    }
  },
  "background": {
    "scripts": [
      "main.js"
    ]
  },
  "name": "CommSoft URL Detector",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Capture urls from all tabs and send it to a host application running in the user's local pc.",
  "permissions": [
    "tabs",
    "activeTab",
    "nativeMessaging"
  ]
}