User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 2.0.50727) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0 When I try to use the outerHTML property of an HTML control it shows as Undefined in Firefox wheras this works fine in IE. I feel this can be taken as a serious issue in the sense that many developers find it difficult to make their code cross browser compatible. Could you please have a look into this. Thanks Deepesh Reproducible: Always Steps to Reproduce: 1. Try to alert out the outerHTML of an HTML element. 2. 3. Actual Results: alert(HTMLControl.outerHTML) Expected Results: Returns --> undefined shown the actual outerHTML of the HTML control. Please see the same in IE where this works fine.