The Mozilla Suite was the flagship program of the Mozilla Foundation from 1998 onwards, until the foundation created Firefox and Thunderbird. The mascot of the Suite is also called "Mozilla".

The Suite includes a browser, an IRC client, a HTML composer, an address book, and a news and email client. Its code is based on Netscape Communicator.

In March 2005, the Mozilla Foundation announced that it would not actively develop the Suite any longer, except for key security upgrades. A community effort to continue the active development of the Suite is underway, renamed "SeaMonkey".