Crypto Currency Converter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Crypto Currency Converter",
  "description": "Real-time conversion between encrypted currency and issued currency that supports scenarios",
  "version": "1.0",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "background": {
    "service_worker": "background.js"
  },
  "host_permissions": [
    "https://www.okx.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png",
      "48": "images/icon-48.png",
      "64": "images/icon-64.png",
      "128": "images/icon-128.png"
    }
  },
  "permissions": [
    "storage",
    "contextMenus"
  ]
}