Source: http://feeds.gawker.com/~r/lifehacker/full/~3/313305926/sxipper-automatically-fills-in-web-forms
Firefox only (Windows/Mac/Linux): Firefox extension Sxipper automates your web logins and form filling through a simple, attractive interface. Once installed, you can create different personas into Sxipper for quick form filling for site registrations, and Sxipper automatically works with Firefox's existing saved logins. The extension can either learn and build personas based on information you've already used in forms, or you can import other form and password data from other programs like Roboform or plain old vCards. Sxipper is free, works wherever Firefox does.
