does blocking me from loading a page because they have the impression that my browser might be to old to handle it. I just updated a few days ago to the at time of writing official version.

Yes, cloudflare might not be able to see the correct version because of settings making it harder to track my firefox, but should they care?

From every bad there comes something good: I had lost track of μArt and usb-serial-adapter and had searched for it. Using the name of the kickstarter product I couldn't access on I searched crowdsupply and found the adapter I had remembered 😀 .

In the end cloudflare protected me from buying the wrong product, because they thought my browser is to old.