Mozilla SeaMonkey 1.1.9 for Windows/ Linux/ Mac

SeaMonkey - all-in-one internet application suite: tabbed web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple - all your Internet needs in one application.
The SeaMonkey project is a community effort to deliver production-quality releases of code derived from the application formerly known as "Mozilla Application Suite" and is the codename for the Mozilla browser. They include the NGLayout/Gecko layout engine and are built atop the XPCOM component architecture.

More info

Download for win
Download for lin
Download for mac