Ping Pong

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Ping Pong",
  "short_name": "pong",
  "description": "play ping pong in your browser",
  "version": "0.4.3",
  "version_name": "V0.4 alpha",
  "manifest_version": 2,
  "browser_action": {
    "default_icon": "images/icon.png",
    "default_popup": "thing.html"
  },
  "permissions": [
    "storage"
  ]
}