This needs to be clarified and expanded upon.

I completely agree. As a new extension developer, this page and the <window> page both make it seem like using this attribute could have a significant impact on the grouping of my extension's windows with other browser windows, but there is no list of standard attribute values (or an example). If I figure it out online, I'll try to edit it myself, though. >>>mathemajor

One thing you can do if you can't find any examples is just a Google codesearch:Ā although in this case I don't know how revealing that is. MatrixFrog 14 July 2010