The problem began on Sunday December 6, 2020. I could no longer log in to my Charles Schwab Account with Firefox. On December 7, 2020 I called Schwab and suspected it was a problem with the Firefox browser. They had me log in using Chrome, which worked fine. Schwab said they would contact Firefox and let them know of the problem. I decided to also let you know of the problem. As of this morning, December 8, 2020 the problem still exists. Hopefully you can resolve it soon. Thank you.