I mean, it’s creative, certainly. It’s a bit weird/a shame that the logotype doesn’t have anything to it now other than bold sans serif letters, and they certainly were fighting an uphill battle by changing the terribly clever, minimal existing logo. Also Mozilla is currently acting like supervillains, allegedly discriminating against a cancer survivor, which makes the brave non-profit schtick an even harder sell.
Given that, and taking it for granted that they needed a brand refresh; the flag is cute. I like it!
The dinosaur is a little odd, too — isn’t that a chromium thing…?