Geeknook Labs

This unofficial Chrome extension for Quora was released in late 2010 and reached more than 3,000 users overnight. It was built before the Quora API existed, but now uses the extension API to ensure quickness and stability.

The extension shows the Quora logo next to your Omnibox, where a dynamic badge displays how many notifications and unread messages you have. Clicking on the icon drops down a Quora UI where you can click through to each notification (opening it in a new tab), or search Quora directly.

This extension can be downloaded for free at the Chrome Web Store.

The source code can be viewed and downloaded on GitHub.