Examine source code of AR Auto Buy

{
  "manifest_version": 3,
  "name": "AR Auto Buy",
  "version": "1.0",
  "description": "Auto refresh and buy extension based on criteria.",
  "browser_specific_settings": {
    "gecko": {
      "id": "arautobuy-v4@xabhi.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "*://arbpay.me/*",
    "*://*.arbpay.me/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "AR Auto Buy"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://arbpay.me/*",
        "*://*.arbpay.me/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}