According to Asa Dotzler of the Mozilla Foundation, the organisation who bought us FireFox, They are looking forward to Microsoft’s IE7 as it only runs on Windows XP and Longhorn (when it is released).
The reason for this is because 50% of businesses are still running on Windows 2000. Asa believes this will be a massive inroad for FireFox as Microsoft attempt to make Windows XP a required upgrade. Using Firefox will enable companies to help break the never ending upgrade spiral by making the latest browsing technologies available without being forced along the Microsoft route.
This kind of ‘upgrade or be forever obsolete’ attitude is probably part of the reason that Linux is also starting to make inroads on the desktop environment.
I, for one, am currently trying to have FireFox deployed across my companies terminals, but IE dependant websites still abound and are putting a spanner in the works.