Websites blocked by security

I have Zone Alarm firewall and Avira antivirus security. When I pull up
a list of websites regarding a certain topic, and attempt to click on
one, my computer blocks me. I have to type the site in my URL address
bar to open it. Can someone give me specific steps in changing this?

Thank you,
seathere
Or switch off one and try, then switch it back on and switch off the other and try again.
If
you find out what program is blocking, you probably can create an
exception in its config so that it allows the url next time.