In Firebug you may open the DOM panel and view "user defined DOM propeties"
I am wondering if there is a way to view these properties in the native dev tools for firefox and/or chrome.
I can view them for all elements in body but cannot find a way to see those in the top level (equivalent of "window" in firebug)
And they're not really DOM properties. They're just object properties, where the objects happen to be DOM nodes.
inspect($0)
in the console after you selected an element, or via the context menu:
so inspect(window)
for things that are not in the inspector