Examine source code of SEO Doctor

{
  "name": "Seo Doctor",
  "version": "1.0.0",
  "manifest_version": 3,
  "description": "Extension that checks the ranking for keywords and check index link in Google and Automatic content module support",
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "scripting",
    "unlimitedStorage",
    "webRequest"
  ],
  "icons": {
    "16": "icons/icon.png",
    "48": "icons/icon.png",
    "128": "icons/icon.png"
  },
  "host_permissions": [
    "*://*.google.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/lib/jquery-3.6.3.min.js",
        "scripts/functions.js",
        "scripts/content-script.js",
        "scripts/ranking-script.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background-script.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "duyvn.k56@gmail.com"
    }
  }
}