This is the firefox add-on for Ja.gs URL shortening service and instant email service (email without registration).
Ja.gs is a website provides URL shortening service, instant email service(email without registration) and an online clipboard.
To use Ja.gs Mail, just go to the web page, write and send, no registration needed. This service can be very useful for people on the road using public PCs. We find it very handy when we want to save some content on a web page, just right click the content, send an email from Ja.gs Mail to ourselves.