Thanks for your reply
Corion.
Yes, Mozilla (at least as I've configured it) automatically adds addresses that you send mail to, to your addressbook.
I really don't want to monitor their mail, I want the process to be automated without me in the middle. The must have their privacy. We have had lots of talks about the internet at our house, and they are fully aware that some pages on the internet are not intended for them. I just want to keep theese pages from hitting them when they don't want them.
/brother t0mas