Bt webmail & Firefox

[pbwpu]

As of this morning I can't login to BT webmail.

I select my longstanding pw and e-mail from the drop down and then it loads to

https://strongauth.secure.bt.com/arcotafm/cap/controller4.jsp?profile=$%2Fsecure$%2Femaillogin etc etc

Then fails to a red error message "Please check you entered your username and password correctly and try again. If you need help remembering your username or password you can use the links below. "

un/pw is fine and I can login via IE etc. (I have checked with my other bt addresses and all have the same message.)

Cache and cookies cleared. Any thoughts?

[gg30340]

If you can log on using another browser there is obviously nothing wrong with your password and account so it would appear that it is a Firefox problem. 

Have you checked it is the most up to date version of Firefox?

Try this link to the BT email logon page.

BT Email 

[pbwpu]

Yeah i'm on 75 its only just updated. Its poss something corrupted in the upgrade I suppose.