Bitcoin price at Bitstamp

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Bitcoin price at Bitstamp",
  "short_name": "Bitstamp BTC price",
  "description": "Displays the current bitcoin price at Bitstamp.",
  "version": "1.4",
  "background": {
    "scripts": [
      "script.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "icons": {
    "16": "16.png",
    "48": "48.png",
    "128": "128.png"
  },
  "browser_action": {
    "default_title": "Click to show more information",
    "default_popup": "popup.htm",
    "default_icon": {
      "19": "19.png"
    }
  },
  "permissions": [
    "https://www.bitstamp.net/",
    "storage"
  ]
}