Examine source code of HTTP Header Analyzer Pro

{
  "manifest_version": 3,
  "name": "HTTP Header Analyzer Pro",
  "version": "4.0.1",
  "description": "Analyzer of HTTP headers, IP, Geo, redirects. Two modes: constant and on demand.",
  "browser_specific_settings": {
    "gecko": {
      "id": "http-analyzer-pro@ideb.net",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "webRequest",
    "webNavigation",
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "page": "background.html"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "HTTP Header Analyzer Pro"
  },
  "homepage_url": "https://ideb.net/scripts/72-extension-http-analyzer-pro.html",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}