I'm just a little salty they didn't go with the new fox idea... of course maybe that's just because I'm a biased furry... it does kind of make sense why they went with the swirl instead. Much better brand recognition
To be honest, I don't really like the new Re-Branding that Mozilla is doing. The old Mozilla Firefox Logo was completely fine when Quantum was released. They should've gave the current Logo a few more Years.