What do you mean by your two factor authentication is not getting recognized? Are you entering the code and it's not accepting it? Are you not being asked for 2FA? Are you not able to log in?

Wesley, thanks for responding. In my profile on the banking site, it will save a browser/device so that you don't have to go through the 2 factor authorization each time you log on. It has saved my safari session and my iPhone app in my profile but I cannot get my Firefox session to be saved, requiring me to enter the 2 factor each and every time I log on. Since Firefox is my preferred browser that gets old.

Is this about storing data on the internet server (i.e. not locally on your computer) or is still data stored locally in a cookie or other local storage that needs to be send to the server ?

What kind of data do you need to enter on that site to make the website recognize you ?

You can try to create one allow exception for the base domain: https://navyfederal.org