"Save as page..." freezes firefox for 15 minutes

[manfred]

When the first time after loading firefox I choose File/Save Page as...
firefox freezes for 15 minutes. Then the "Save as" window opens and all
works fine.

After newly choosing File/Save Page as... the "Save as" windows opens up
instantaneously.

The problem doesn't disappear even after deleting ~/.mozilla before
starting firefox.


I'm running firefox 1.0.6 under FreeBSD 5.4. The problem occured also with
firefox 1.04. There is no CPU usage. It is simply a waiting situation.
However, I have not the faintest idea what firefox is waiting for.


Any ideas, how to track it down?

-- 
Manfred