SeaMonkey has been rebuilt on top of the modern Mozilla platform, featuring world-class add-on management, among other things. In addition, it has been improved with feed support (including an RSS and Atom feed reader in the mail component), a modern look, restoration of browser tabs and windows after
The SeaMonkey project is a community effort to develop an all-in-one Internet application suite. It contains an Internet browser, email and newsgroup client with an included Web feed reader, HTML editor, IRC chat, and Web development tools, and is sure to appeal to advanced users, Web developers, and corporate users. It uses much of the Mozilla source code powering such successful siblings as Firefox, Thunderbird, Camino, Sunbird, and Miro.