Well we can't have MS getting "pwn3d" via Interweb Exploder now can we :-D
At least he is honest about it. Where I work, the director of IT is an MS bigot (wouldn't it be funny if he walked over right about...now). It is hard to get him to admit there is anything wrong with IE. But all the employees I have switched to Mozilla after their workstations are brought to their knees by spyware and pop-ups, say they will never go back. The spyware is gone and the web is faster!
The fact that he is using Firefox doesn't surprise me, the fact that he admits it does...even if by mistake.