Hello, I'm running Firefox 106.0.2 (64-bit) on Windows 10 (all updates applied) I'm not sure if this issue is related to a Firefox update yesterday (27/10/2022), but I can no longer log in to sainsburys.co.uk. I have used Firefox for years on this website and have never before encountered an error. I called Sainsburys support and I don't think anything has changed on their site. Their site uses two-factor authentication and after entering an email address and password, the site generates an error message asking the user to contact Sainsburys support. I have no problems with authenticating on other sites and I can log onto sainsburys.co.uk using Google Chrome. Any thoughts would be appreciated. Thanks.