Hi, I use a company called DTE Energy for my electric service. I routinely log into their website from a win10 laptop running firefox. This week I've been unable to log in to their site using firefox. My mobile app and chrome on the same laptop both work fine. I rebooted, deleted cookies and cache, and refreshed firefox. The only extension I use is Keeper password manager. I tried to log in using "safe mode" in firefox which also didn't work. When I put in my credentials and click log in, the icon spins but never finishes. I called DTE support and they said my ID has no issues. I disabled the DNS spoofing. Here is the url: https://newlook.dteenergy.com/wps/wcm/connect/dte-web/login I can't think of anything else to check. Thanks for your help. Phil