Why Mod4+D is not working for Firefox?

Question

My keyboard shortcut for minimizing all opened windows is Mod4+D.

It works fine for all windows (including Chromium) but for Firefox.

Why is this and what do I have to do so Firefox minimizes as well?

(versions: Ubuntu 11.04, Firefox 4.0)

Answer 1

I found the solution by accident. Control+Alt+Down Arrow