Way to make Firefox appear to Website as IE6 ?

[Michael ODonnell]

I use and like the User Agent Switcher extension for Firefox but
I don't think it'll help in this case.  I say that because I find
that Firefox on Linux can talk to my employer's Exchange server if I
instruct it to ID itself truthfully, but if I tell it to lie and ID
itself as Internet Exploder the server apparently tries to feed it
all kinds of crap that require ActiveX and such, so I suspect he'll
not find joy using that approach.