Downloads in Firefox

I never had this problem is windows... Now I have installed moonshine with firefox and even applied the new update. So now I have Firefox-2.0.0.4

The trouble is that it is not able to download more than 2 files at a time. And there is no options in Preferences to alter this behaviour.

When I try to download a third file while the two downloads are in progress, the run/save dialog box appears only after the completion of one of the downloads.

How do I fix it?

Thank you.

go to the "address" about:config and change
network.http.max-persistent-connections-per-server from 2 to some other number