Examine source code of IOC Checker

{
  "manifest_version": 2,
  "name": "IOC Checker",
  "version": "1.0",
  "description": "Open highlighted IOC in AbuseIPDB, VirusTotal, ThreatFox, URLhaus, MalwareBazaar",
  "icons": {
    "16": "icons/favicon-16x16.png",
    "32": "icons/favicon-32x32.png"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "notifications",
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_page": "settings.html",
  "browser_action": {
    "default_icon": {
      "16": "icons/favicon-16x16.png",
      "32": "icons/favicon-32x32.png"
    },
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    "logs.html",
    "log.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7b154ca6-8372-4e6d-853c-38b98c053589}"
    }
  }
}