Have a look at the extenion, it is in the mozilla labs blogpost: http://mozillalabs.com/prospector/2011/05/20/lesschrome-hd-more-space-to-browse/ http://mozilla

Have a look at the extenion, it is in the mozilla labs blogpost: http://mozillalabs.com/prospector/2011/05/20/lesschrome-hd-more-space-to-browse/ http://mozillalabs.com/prospector/2011/05/20/lesschrome-hd-m... What is does is autohide the whole bar. All it leaves is the tab bar with the Firefox-button and some kind of Panorama/Tab Candy pull down thingie.