just change the [b]Firefox[/b] to [color=red][b]MSIE[/b][/color] [quote]if(navigator.userAgent.indexOf("[b]Firefox[/b]") != -1) { window.location = "http://www.friendster.com"; }[/quote] check also this other page redirect [url]http://theftalk.com/t6636-block-the-viewer-if-he-she-is-using-IE.html[/url]