Access email, Safari, through Xfinity homepage
My iMac desktop started today, Saturday May 30 - if that makes a difference. I can open my Xfinity homepage, but when I click on the mail icon I get a notice "Safari cannot open page. Cannot establish a secure connection." Tried everything I could think of, including talking to Apple Techical, but not worked to correct. I have Firefox as a backup, and that works fine. ANy suggest on how I can correct and access email
iMac, OS X 10.11