Thanks Adam, The problem is that there are so many different ad sites to put in the list - and they keep changing. Regards, Andrew -----Original Message----- From: Adam Egan [mailto:adam.egan@xxxxxxxxx] Sent: Wednesday, 11 January 2006 10:11 AM To: Andrew Barbara Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: Proxy Authentication > Is there a way to make adblocker (or equivalent) block the ad before > authentication? I'm not sure about AdBlocker or anything, but the only thing I can think of is if you know what websites you will allow access to without authentification, you could maybe try and make a list of all the popup urls and add them to a deny list? Someone else may have a better idea though, so sit tight. Adam