Does the Firefox browser know if it is on a desktop or on a laptop? One of the Firefox webpages, and an article on wikipedia said that version 34.0.5 is the current release for DESKTOP computers. An available desktop tower-form computer I often use has version 34.0.5 of Firefox. When I open Firefox v34 on MY computer, a laptop, and check for updates, the message says, Firefox is up-to-date, at version 34. This seems a strange system requirement, if it is true; that 34.0.5 is for DESKTOP computers but not for LAPTOP computers.