Proxy Exceptions in Mozilla Firefox

Many times I've had problems when I tried to add a proxy exceptions into my preferred browser Mozilla Firefox.
This morning I discovered that there was a simple mistake in my approach because Firefox does not accept - differently from IE - "wildcard" character.

In few words:

•  In IE you can use the expression 192.168.1.* to create an exception on all 192.168.1.0/24 network
• In Firefox you have to use 192.168.1.0/24 to do the same thing

With IE you can use both the expressions.

Bye