BTC Balance Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "BTC Balance Checker",
  "short_name": "BTC Blance Checker",
  "description": "Get balance of your BTC in realtime",
  "version": "1.0",
  "background": {
    "scripts": [
      "background.js",
      "jquery-3.3.1.min.js",
      "bignumber.min.js",
      "numeral.min.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "https://*.blockchain.info/",
    "https://api.coindesk.com/",
    "notifications",
    "storage",
    "tabs",
    "alarms"
  ]
}