Firefox and online banking new error: Nightly Can’t Open This Page

When trying to access online banking, I’m getting this error. Anyone else seeing it?

Nightly Can’t Open This Page

To protect your security,
will not allow Nightly to display the page if another
site has embedded it. To see this page, you need to
open it in a new window.

Learn more…

[_] Report errors like this to help Mozilla identify and
block malicious sites

Firefox version:
121.0.1 (Build #2015995071), fd4d251332+
GV: 121.0.1-20231230165955
AS: 121.0

Regain your privacy! Adopt /e/OS the unGoogled mobile OS and online servicesphone

there are some redirects on accessing that url - you could go to the target page until this is understood - ?