Firefox just auto updated to 3.6 today, and OMG WTF WERE THEY THINKING!?
Microsoft has done this years ago back in 1999 in Internet Explorer 5.
See below for some fine examples.
You see what the people on the internet have done with this ability?
They've made lots of shit backgrounds.
To remove it, click uninstall the "Personas" addon/extension. More info here.
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