MeeTimer is a very useful tool to monitor where you spend your time online, and to help you be proactive in becoming more productive.

MeeTimer gives you everything from a simple page timer to advanced stats on your usage habits; with a focus on highlighting where your time could be used better (more productive = more free time = better day!).

As it runs all the time, every effort has been made to make it fast & light; and it benefits greatly from Firefox's inbuilt database for speed.