BT yesterday misspelt my email address with an additional 'h'. Although the original address has now been restored, firefox will no longer accept the original version (displaking a red sticker saying 'email address or user name misspelt') and I can only read my emails using on my Windows laptop using Microsoft Chrome. As I dislike having anything to do with google, please can someone explain how to resolve this problem (by removing cookies or whatever else). Many thanks, Oliver Crichton