Comment by xp84
> Firefox used to be called Firebird and changed due to trademark disputes.
It was first called Phoenix, then a trademark dispute forced them to rebrand to Firebird, then a trademark dispute forced them off that name too. Firefox was the third public name for that project. I'm surprised they didn't also get sued by Clint Eastwood[1] and have to change again.
Trademark rights are limited based on the category of goods or services. The Phoenix and Firebird disputes were with software companies.