You could probably run your bank website in incognito mode and avoid extensions. I do this all the time because I don't completely trust any of my installed extensions. Even if I did, they are auto-updated and their code can change at any time without any notice.
I use this switch and a directory from `mktemp -d` for remote debugging (--remote-debugging-port=1234). The debugging does not disturb my normal browsing and the profile is completely disposable.
