Originally Posted by Lexviticus
I had the same problem when I installed Waterfox 16.0.1.
I found it stopped two of my desktop Gadgets, All CPU Meter and Network Meter from displaying.
After much infuriating research I found that I had to go to:
Control Panel > Default Programs > Set Program Access and computer defaults
and select the "Microsoft Windows" radio button.
This got the gadgets back.
I think something is wrong with the 16.0.1 installer.