PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
Momentum - Agile goal and performance management
AbTest.io - A free url shortener with A/B testing features
New Tab by Flickr - Get a beautiful photo each time you open a new tab
Marpipe - Automate Your Ad Testing, Optimize Your Creative
Gratitude Flow - Gratitude Flow is a web extension that allows you to share and receive gratitude on your new tab with real people around the world.