Examine source code of Tech Detector

{
  "manifest_version": 2,
  "name": "Tech Detector",
  "version": "1.7.0",
  "description": "Detect technologies and check phishing status of websites",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "activeTab",
    "storage",
    "tabs",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "techdetector@gmail.com",
      "strict_min_version": "109.0"
    }
  }
}