Once you're logged into your inbox, you can make a shortcut to it on your desktop.
If you prefer to use an app instead, see https://www.xfinity.com/support/articles/comcast-windows-mail-setup.
How do I get an app for my desktop for email? Right now I use multiple steps to get to my email
Check for browser add-ons. Usually under tools - addons. Mail notifier is a good one that
puts an envelope beside your url space and lights up when you have mail. Good luck!