Ice Weasel - Bon Echo
I don't know, Firefox needs to protect their brand sure, but they need to do it in a way that allows the distros to operate.
Firefox is really only installed by Windows, Mac and Gentoo peeps, the rest have to make do with Ali Quick Change, unless they download directly from Mozilla.
They need to tweak the license a bit, it was actually Mozilla that got a lot of opensource ire, it wouldn't surprise me if the person behind the original move to not host Mozilla license code was not in fact someone who was involved in opensource.
If Mozilla wants to count the downloads which I suspect is one of the motivations then a callback would probably be accepted.
If they want to ensure that things like the debian openssh debacle doesn't occur, well they could make that explicit as well, only source code from Mozilla is acceptable as being firefox, as it stands at the mo the only binary that is accpetable as being firefox is the one from Mozilla.