For the past two days, I am unable to log on to my iCloud account through a Firefox Browser. I've tried to do so on two different computers which have accessed iCloud through Firefox many, many times. However, I have no problem logging on to my iCloud account using an Edge Browser. When I try to log on to my iCloud account using Firefox after entering my user name and password, I receive the two factor authentication from iCloud on my iPhone. However at this point, iCloud immediately gives me an error message (screen shot attached), and I am unable to enter the authentication code. I can only return to the log on page. Since this problem occurs using Firefox on two different computers, but I have no problem accessing iCloud using a different browser, I have to assume this is a Firefox issue, but I do not see that this is a systemic problem. Any suggestions? I hate using Edge for anything, but I am on iCloud.com a lot, so this is inconvenient.