Backbone based Firefox[1] and Chrome[2] extensions for our time tracking and invoicing app, Paydirt[3]. They prompt you to start a timer when they spot keywords related to your clients on the pages you visit.
This is our MVP into intelligent time tracking, seems to work well for people that spend all day in the browser. We'd love some feedback!
1. https://addons.mozilla.org/en-US/firefox/addon/paydirt-time-...
2. https://chrome.google.com/webstore/detail/clfnlkjacgohceabde...