Most people who use webmail won't be able to use mailto: links. (Yes, I have set up my Firefox install to use Gmail for mailto: urls, but I'd been using Firefo

Most people who use webmail won't be able to use mailto: links. (Yes, I have set up my Firefox install to use Gmail for mailto: urls, but I'd been using Firefox a while before I discovered this was possible.) Also, people using it from work might not want it using their work e-mail address and going through their work's mail server.