What is in some people's mind?
Wednesday, March 14, 2012 12:09:11 PM
It is a 3D view of the Web page you are inspecting/editing.
One of the best examples of answer looking for a question.
Who ever needs that? But it could be done and so they did it.
Release notes of Firefox 11 here.
If you ask me, the most interesting change is support of SPDY protocol.