Examine source code of Automatic Coupon Finder

{
  "manifest_version": 2,
  "name": "Automatic Coupon Finder",
  "description": "Automatically searches for discount codes for hundreds of online stores, helping you save money effortlessly while shopping",
  "version": "1.0",
  "homepage_url": "https://www.offch.com/",
  "browser_action": {
    "default_title": "افزونه تخفیف یاب کانال تخفیف",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icon-16.png",
      "32": "assets/icon-32.png",
      "48": "assets/icon-48.png",
      "128": "assets/icon-128.png"
    }
  },
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "permissions": [
    "tabs",
    "https://api.offch.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d4a5d94b-39d1-4f9b-a081-61a241b2d9b0}"
    }
  }
}