I know that technically Abrowser, IceCat and Iceweasel (Debian) are not 100%
unmodified Firefox, but can they at least give the same user agent? At least
with Chromium it still reports that the browser is Google Chrome and I have
yet to have user agent issues with that.
Trying to portray IceCat or Iceweasel as a "better" alternative to Firefox
doesn't really help their cases if many websites still sniff out user agents
and they have issues with these offshoot browsers trying to advertise. How
about if you were to install IceCat or Iceweasel for your mother and her
banking sites get screwed up? She would probably want you to uninstall it and
just use normal Firefox.
I installed LibreOffice for a family member instead of Office 2007 and
recently they complained about the issues they had with the Calc spreadsheet
program and their response was "why didn't you just install Office? You put
this weird program that doesn't look at all like Office and is broken. Next
time just give me Office"
P.S. The above discussion happened when they wanted Adobe Illustrator and I
said to try Inkscape instead since it was free. Their response was "I don't
want cheap knockoffs like with that office program. Just give me Illustrator
because that is what the industry professionals use and it just works."