Show how it's being block by posting screenshots. Which bank site? Did you try with Firefox in Troubleshoot Mode?

The login was just now blocked in troubleshooting mode and I've uploaded the "blocked" notice page with the banks name. I have other bank accounts that I logged into (end of month routine) with no problem, only this one. Since each bank has a different password, I wonder if any special characters may cause a problem, which could explain the other banks not being blocked. It seems odd that only this bank gets blocked by Cloudflare with Firefox browser but not with the MS Edge browser.

Try clearing site cookies and disabling Tracking Protection for the site.

Also try changing DNS over HTTPS (DoH) to "Off" or "Max Protection" and in Connection Settings change "Use system proxy settings" to "No proxy".