Patient Portal: Choosing Portal Audit generates error in Firefox 89.0.2 (64-bit) (MacOS)

Situation

(This problem does not occur in macOS Safari)
In Firefox 89.0.2 (64-bit) (macOS), choosing the “Audit” option causes:

Oh Snap!

Unauthorized

You may want to try returning to the the previous page and verifying that all fields have been filled out correctly.

If you continue to experience this error please contact support.

Stack Trace:

#0 /var/www/localhost/htdocs/openemr/portal/patient/fwk/libs/verysimple/Phreeze/Dispatcher.php(91): GenericRouter->GetRoute(‘GET:onsiteactiv…’) #1 /var/www/localhost/htdocs/openemr/portal/patient/index.php(59): Dispatcher::Dispatch(Object(Phreezer), Object(SavantRenderEngine), ‘’, NULL, Object(GenericRouter)) #2 {main}

Patient Portal v6.0.0 (2) Copyright © 2021 By sjpadgett@gmail.com License GPLv3

OpenEMR Version
I’m using OpenEMR version 6.0.0p2

Browser:
I’m using: Firefox 89.0.2 (64-bit) (macOS)

Operating System
I’m using: macOS 11.4