Hey, I'm using Web Parts and atlas to implement drag and drop of web parts. Every thing work great in IE6. After reading ScottGu's Blog about firefox support http://weblogs.asp.net/scottgu/archive/2006/03/24/Drag-and-Drop-ASP.NET-2.0-Web-Parts-in-FireFox-_2800_with-Atlas_2900_.aspx I decided to give it a try. It works fine for the *first drop* but after the first drop it seems that the webPartManeger mode change from edit to browse... You can all have a look here - http://www.smartscoreboard.com If someone can give me a tip it will be much appreciate Thanks