Xfinity mail problem with Edge
Often when I am composing an email in the xfinity mail app using the Edge browser it will not let me add a CC'd address or write anything in the Subject box. It occurs 95% of the time. On one occasion I exited mail, restarted the computer, and reopened mail and it worked, but only once. I do not have any problem if I use Chrome.
Unrelated to Edge but still an xFinity issue - I have also noticed that the Xfinity mail app is sluggish or non-functional (will open but not allow me to pull down to refresh) on our iPhones. Again, not always but most of the time.