SeaMonkey is a free and open-source Internet suite. Developed by The SeaMonkey Council
License: Open Source
SeaMonkey is an all-in-one internet application suite that includes web browsing, email, and chat, making it ideal for users seeking a comprehensive tool. In contrast, Mozilla Firefox focuses primarily on providing a fast and secure browsing experience with a vast extension library, catering to users who prioritize speed and modern web standards.