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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "mail.ru AdBlocker - Блокировщик рекламы",
  "description": "Блокировка рекламы в почте mail.ru",
  "version": "1.4",
  "action": {
    "default_icon": {
      "16": "images/icon/icon-16.png",
      "32": "images/icon/icon-32.png",
      "48": "images/icon/icon-48.png",
      "64": "images/icon/icon-64.png",
      "128": "images/icon/icon-128.png",
      "256": "images/icon/icon-256.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "storage",
    "scripting",
    "activeTab"
  ],
  "host_permissions": [
    "*://e.mail.ru/*"
  ]
}