Adding in "Firefox/" into the filters helped, just got my first complaint from a Firefox fan about it not working anymore. * Error Code: 502 Proxy Error. The request was rejected by the HTTP filter. Contact your ISA Server administrator. (12217) ________________________________ From: Ara [mailto:ara@xxxxxxxxxxxxx] Sent: Thursday, March 17, 2005 23:20 To: [ISAserver.org Discussion List] Subject: RE: [isalist] RE: ISAserver.org - Review of SurfControl Web Filter 5.0 for ISA Server 2004 Yes I noticed the same thing. You can block IE not everything except IE