I found this website which explains exactly how to add support for gmail in Firefox 3. Hopefully in the future they’ll include this by default, or perhaps make it easier.
Microsoft Vista Audit Mode for Reinstalls
All right, I’ll be honest in that 90% of this article is cut and paste from a much more detailed article at MicrosoftTechNet.
I recently did a reinstall of Vista for a friend. I didn’t know about this trick at the time but stumbled across it shortly afterwards. I had to awkwardly guess at answers and set up some basic accounts before installing a slew of updates.
Instead I should have just used Audit mode. From the article:
Audit mode enables OEMs and corporations to customize a Windows installation before shipping the computer to an end-user. In audit mode, you can install applications, add device drivers, run scripts, and test the validity of a Windows installation. Audit mode is a networked-enabled environment that does not require settings in Windows Welcome to be applied.
<snip/>
For attended installations, from Windows Welcome screen, press SHIFT+CTRL+F3.
<snip/>
After you have completed your customizations and have verified that the computer is ready to ship to a customer, configure the system to boot to Windows Welcome by running sysprep/oobe. The next time the system starts, Windows Welcome starts.