I don't believe that this applies to copies of Firefox installed from the Debian archive. I think that it is only for binaries installed from the Mozilla site. To make it apply to the Debian package the installer would have to pop of an "I agree" clicky. Not likely.
Some restrictions apply if you open a Mozilla account and use things like "sync", obviously. -- John Hasler j...@sugarbit.com Elmwood, WI USA