I'm getting an error every time I click on a web link in an email.  It says Windows cannot find URL.

If you have Firefox installed as your browser you may see the following error when clicking on a web link in the MailCOPA email program

Windows cannot find 'URL'.

This error is because of a bug in the way Firefox registers itself as the default browser.  If you go to this link http://johnhaller.com/jh/mozilla/firefox_bug_246078.asp there is a registry patch you can download to solve this problem.