Unfortunately, I'm not sure there's a lot we can do about this issue, as that is controlled by our firewall provider. It uses a complex methodology to determine when to show CAPCTHAs, and I'm not privy to how it works. The ability to turn it off is only available if we turn off the firewall itself, which we cannot do I'm sorry to say.
I wonder if these issues are related to the specific kind of web browser you are using? And if so, could you please let me know what that is, as well as your operating system (Windows 10, Mac, etc.)?
Thanks.