[danShumway]

Anecdotally I notice this same issue. In your Firefox install do you have `resistFingerprinting` turned on, and do you have Firefox's anti-tracking protections turned on? It's possible if you're using a default install and if you're not using VPNs that you might never see a difference between behaviors. But that's only a guess.

My experience is that Firefox as a policy is not blocked, but if anything about my setup looks sketchy (I'm on a VPN, I have Javascript disabled, I'm blocking cookies, etc...) being on Firefox seems to make Cloudflare a lot less "tolerant" for lack of a better word.

I don't think Cloudflare has a policy against Firefox, but I do vaguely suspect that certain behaviors that wouldn't trigger blocks for Chrome do trigger blocks for Firefox (particularly if it's hardened). I don't have any hard data to back that up, maybe it's my imagination -- but it is what I personally notice.