The Gmail Manager Extension
One of the joys of using either Firefox or Flock is that both of them allow you to extend the functionality of the browser. What that means is that if you need for your browser to do some specific thing that it doesn't already do, you, or in my case somebody else, can write a mini-application called an «extension» that provides the ability to do what you want it to. By using extensions, users can choose to install only those additional features to their browser that they actually need and want to use.

