I have a particular banking website that I have been unable to use this past week. When I enter username and password, the site sends a code. When I enter that code, the website returns a message that the code is incorrect (it is not) and that my account has been locked. I worked with a CS agent at the company online, and he confirmed that I am entering the correct code. What is causing this? I have not changed any of my Firefox settings for several months. My browser is updated to the latest version. When I log in using Safari, I have no issues. Do you know of a reason this is happening?