You can use [Chime](https://chrome.google.com/webstore/detail/chime/lkdfkbkkfdhhfnhgbphecddnpfnoedke/). It's perfect! I found it recently while browsing through the Chrome Store (because that's just what I do ;p) Services: - Gmail - reddit - facebook - twitter - quora - github - flickr - stack exchange - foursquare - google plus You can just click the icon next to the address bar and any outstanding notification will be shown. You can mark them as read and then they disappear. Note: The extension says 'stackoverflow', but it shows all the notification from all the stackexchange sites.