Unable to add new users to WP on Firefox – Jetpack js error on that page

Hi,

On our site, when viewing on Firefox (no other browser), there is a js error that affects the password field:
– no password can be added/generated in the field
– dots only are showing
– when going ahead to add the new user this error displays: https://ibb.co/nbdH7rX

In the console I see this error: https://ibb.co/7CSH11Z

I have gone through full troubleshooting and find this error stops when Jetpack is deactivated. No issue with other plugins or the theme and it still happens on a standard theme when Jetpack is active.