Coub sound anti-disabler

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Coub sound anti-disabler",
  "version": "0.2",
  "description": "Coub.com sound anti-disabler on window blur",
  "manifest_version": 2,
  "permissions": [
    "http://coub.com/"
  ],
  "icons": {
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://coub.com/*"
      ],
      "js": [
        "coub.js"
      ],
      "run_at": "document_idle"
    }
  ]
}