Debian wouldn't be where it is at today if it wasn't strict when it comes to free software and what "free" means.
I believe it is Mozilla's ego who needs a little deflating.
I'd like to hear someone like Blake Ross chime in with an opinion.
It's also increasingly ironic considering the problems Pheonix...errr...Fire
bird.. Firefox had when coming up with a name that didn't clash with trademarks.