The Visitation Cloud Add-on generates a cloud of the top 30 most visited web sites in your Firefox Browser's History. Each web site's domain name is a hyperlink. Visitation Cloud can be saved as SVG, PNG or JPG file which can be shared with others easily. The order of the cloud can be randomized. Your personal cloud can be posted as an image on Facebook or you can simply post a link to the Add-on's download page, so your friends can install it too.
All of the above functions are available on the right-click menu on the add-on's main window.