Newbie avast! user with Mozilla Firefox

[crashlbg]

I was told that avast! is one of the best free anti-virus programs around.  My problem is that now that I've installed it, I am unable to connect to the internet through my Mozilla Firefox 3.6.3 web browser.  I'm sure there is a way to configure avast! to work with Firefox, but I haven't been able to figure it out.  I have Windows XP.  Before I change anti-virus software, I thought I would ask here if anyone knows what to do in my situation.
Many thanx... Lisa  

[doktornotor]

First I'd suggest to edit your post and remove your email address from there. Spambots are scouring here.
Second - any firewall in use/which one? If you disable the web shield, can you connect via FF?

[Tarq57]

What other AV was installed prior to Avast, and what firewall do you use?
Can IE connect to the web?

[Asyn]

First I'd suggest to edit your post and remove your email address from there. Spambots are scouring here.

+1
Furthermore you should also hide your Email from the forum to prevent it's getting harvested..!!
asyn