In case you are still not a Firefox convert, and using IE instead:
Tweakomatic is a tool for setting and configuring Windows and IE Settings. The
official blurb from the Microsoft:
The Tweakomatic is a nifty new utility that writes scripts that allow you to retrieve and/or configure Windows and Internet Explorer settings. So what, you might ask. Well, think about it. Because these are WMI scripts, they can be used to configure settings on remote computers. Need to change something on a remote machine? Then haul out the Tweakomatic. And think about this: because the Tweakomatic writes scripts, you could do something like run these scripts as logon or logoff scripts. In other words, you could quickly, easily, and automatically configure settings on any or all the computers in your organization.