I don't know if there a reason or no, but there is no icon in the Navigation Toolbar of the browser left of the website's address.
Since I bookmark all websites which I visit often to the Bookmarks Toolbar of Mozilla Firefox, to save up space I don't use any description on them, and leave the icon only. But in Xsyon there is no icon, this is how I noticed it.

Would be nice to see that nice Xsyon idon up there.

Keep up the good work and thanks!!

It's called a favicon, and yes I agree, that it is convenient to have one for bookmarks, etc.