Examine source code of AffReel Pro Extractor

{
  "manifest_version": 3,
  "name": "AffReel Pro Extractor",
  "version": "6.5.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "affreel-pro-extractor@addons.mozilla.org",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "description": "Trích xuất link Shopee Affiliate từ Facebook Reels chỉ với 1 cú click.",
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "http://app.affreel.com/*",
    "https://app.affreel.com/*"
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://app.affreel.com/*",
        "*://*.affreel.com/*",
        "*://affreel.com/*",
        "*://affreel.test/*",
        "*://*.test/*",
        "*://localhost/*",
        "*://127.0.0.1/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}