Weird minor problem using Avast 4.8 Home

Running XP Professional SP3; 2.53 GHZ Pentium, 1.11 GB RAM; 70GB free space; ZoneAlarm.

SeaMonkey is my default browser but I also have Firefox on my unit. When rt clicking on Avast Ball and About Avast and on the link of http://www.avast.com, it loads FireFox instead of SeaMonkey.
Clicking on any link in this forum brings up SeaMonkey, as it should. What is the problem with the link in the About Avast link and how do I fix it?

Hi,

Probably you will get a “how to” but unless you want to uninstall Firefox it seems unimportant.

If you were to uninstall Firefox and reinstall Avast I suspect that it would then automatically detect SM.

My regards