Bitcoin/Litecoin Ticker Alarm

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Bitcoin/Litecoin Ticker Alarm",
  "description": "Shows latest price ticker of popular BTC/LTC trading exchanges, and plays sound when the price exceeds certain value.",
  "version": "0.39",
  "browser_action": {
    "default_icon": "images/alarm-icon-small.png"
  },
  "background": {
    "persistent": true,
    "page": "background.html"
  },
  "options_page": "options.html",
  "permissions": [
    "https://data.btcchina.com/",
    "https://www.bitstamp.net/",
    "https://www.okcoin.com/",
    "https://btc-e.com/",
    "https://market.huobi.com/",
    "https://api.bitfinex.com/"
  ],
  "content_security_policy": "script-src 'self' https://ssl.google-analytics.com; object-src 'self'"
}