Email links to html are not getting sent to the browser.

Starting a few days ago, when i click on an HTTP or HTTPS link in a message, nothing happenes. The wait cursor comes on for about a second, but the browser is not notified.
The Firefox settings claim it is the default browser and the EMClient settings claim it is the default email client. Running V7.2. Avast A/V & Firewall (turned off email privacy, and no changes)

Any ideas?

tnx,
paul

I was able to fix this by closing all programs and re-booting the PC.

However, my IMAP problems still exist and seem to be related to the upgrade from 7.0 to 7.2. This is in another post.