Examine source code of IQCASHBACK

{
  "name": "IQCASHBACK",
  "description": "Расширение напомнит Вам о кэшбеке при каждой покупке и возместит до 35% потраченных денег с онлайн покупок.",
  "version": "12resigned1",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "extension.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "styles.css",
    "template.html"
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "storage",
    "*://iqcashback.com/*"
  ],
  "applications": {
    "gecko": {
      "id": "{eedcf0fb-3804-461e-87b3-c277d38ce7fa}"
    }
  }
}