I was having issues signing in to my ATT yahoo mail account I have had for years while using firefox. All of a sudden in late 2024 it was intermittent as to if I got in or not. I called ATT and the tech was aware and did not have a fix other then to log in on private browser which works. So here is what happens I hit the logo on my firefox face page, it sends me to my log on for yahoo filled in. Hit it, it sends me to att login hit that it goes to password hit that and if it works it brings up the verification page asking numbers sent to my phone. enter those numbers hit enter and I am on my e mail page. if when I hit ATT password and its not going to work it brings up a sorry its us not you try again from ATT if you hit retry it sends you to the open page for yahoo but not your mail. Some times it works next time it doesn't. Help