Yesterday I was browsing one of the better Video Tutorial sites on the web, and my eye catches the attention of a VT about Firefox Personas.
I can explain in what it is (yes it is a extention of Mozilla) but the screencast already does that.
But basically you can change the header of firefox and together with Inkscape you can customize it to your own preferences.
See the screencast 48: http://screencasters.heathenx.org/
A site worthy to bookmark anyway.
I downloaded all the screencast (to moment of writing 48)totalling 1.1 GB.
So it’s a very cool site.
Take a look