For firebird, https://www.cnet.com/tech/tech-industry/mozilla-holds-fire-i... and https://www.cnet.com/tech/services-and-software/mozillas-fir... in this case it was AOL Time Warner that owned the Firebird trademark for the database.
2) For Phoenix, https://web.archive.org/web/20070914035447/http://www.ibphoe... the main reporting on it seems to be lost but wikipedia still backs it up
Phoenix Technologies, the BIOS maker sent me an email telling us they made a BIOS web browser and our name would confuse things. Under advice from our legal support, we agreed to change the name.
We changed to Firebird and the OSS database project bombed my inbox (and Mitchell's too) for a week with hundreds of nastygrams and though we were in the clear on TM, we didn't want to stomp on the little OSS project so we changed again.
I was at the whiteboard when Jason Kersey of mozBin, mozillaZine, and later Chrome fame came up with Firefox. We had two columns of names, forces of nature and animals and were pairing them up.
which if you're interested—Cathode Ray Dude on youtube has several episode series all about that weird and wonderful point of computer history
https://web.archive.org/web/20020618092004/https://www.xbitl...
Nice. Now I wonder if the ~0.8? era extension "Firesomething" was directly inspired by that whiteboard. IIRC it randomly combined two components from lists.