[wlug] Firefox attack

Hi All. Recently my firefox browser was sneakily attacked by a "systemdoctor/drivecleaner" scam programme that gave a bogus harddrive scan and reported a bogus outcome then locked the browser unless the home site was visited. I fond out that I need to install Adblock into firefox then block adbrite by: *.adbrite.com/* If any one is aware of more of these nasties that can be simply eradicated by Adblock please feal free to share. Given that most of the list are IT experts, this will come as a history lesson I guess. However if it can help one person it will be worthwhile posting. Regards John