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What is Mozilla SeaMonkey ?

SeaMonkey is an open source all-in-one internet suite that facilitates to Linux, Windows, and MAC users to manage all web operations like Web Search, E-mail, News, HTML Editor etc at the concurrent place. It is developed by using the same source code as Mozilla Application Suites because it was developed by Mozilla foundation in 2005.

SeaMonkey Council provides high-quality updates for internet web browser, email client, newsgroup client HTML editor and IRC chat. It is used as a web browser and email client. It is an open source internet suite so any developer and tester can contribute for the new upgrade.

History of Mozilla SeaMonkey

Initially, Mozilla foundation was developing a stand-alone project named as Mozilla Suite. But in 2005 the Mozilla foundation announced that they would not release any new official version of this internet suite because they are more focusing on the stand alone applications like Firefox and Thunderbird. Along with this, they announced one more thing that they will provide the infrastructure for those community members who wish to work on the same project (Mozilla Suite) and make development continue.

In 2005 a new council takes responsibility to continue Mozilla suites open source development and is named as SeaMonkey Council. On July 2, 2005, officially it is decided that the SeaMonkey will be the new name of the Mozilla suite. After the 6 months of hard work fist version of SeaMonkey was released on January 30, 2006, and it was named as SeaMonkey 1. More information about the SeaMonkey is maintained in tabular form.

  • Developer: - SeaMonkey Council
  • License: - Open Source
  • First Release:- January 30, 2006
  • Software Type: - Complete internet Suite i.e Browser, News Client & E-mail.
  • Developed in: - C++, JavaScript, XBL & XUL programming languages
  • Language Support: - 26 Languages Across World.
  • Latest Release: - March 14, 2016 as SeaMonkey 2.40
  • Platform Supports: - Linux, OS X (Mac) and Windows.

Component of Mozilla SeaMonkey

SeaMonkey Consist of Web Browser, Mail & Newsgroup, Composer, Address book, IRC chat (also know as ChatZilla) and HTML Editor (also called as SeaMonkey Composer). The Mozilla SeaMonkey internet suite designed to support skins. In computing, skin is a custom graphical appearance used for graphical user interface. The SeaMonkey supports two skins in the default installation as modern & classic.

Protocols Used by Mozilla SeaMonkey

Mozilla SeaMonkey uses some protocols while sending or receiving e-mails like.

  • Sender End Protocol: - SMTP (Simple Mail Transfer Protocol)
  • Receiver End Protocol: - POP3 (Post Office Protocol) and IMAP (internet Message Access Protocol).

Default Location of Folder and Profiles in SeaMonkey

The SeaMonkey stores the profile and folder at a different location in Windows, MAC, and Linux Operating system. The Default location of Mozilla SeaMonkey in all supported operating system is given below.

  • In Linux operating System

~/.mozilla/seamonkey/********. » profile name «

  • In MAC Operating System

~/Library/Application Support/SeaMonkey/Profiles/********.»Profile name«

  • In Windows Operating System

For Windows XP & 2000

C:\Documents and Settings\Windows login user name\Application Data\Mozilla\SeaMonkey\Profiles\ ********. »Profile name«

For Windows Vista, 7, 8 and 10

C:\Users\Windows login user name\AppData\Roaming\Mozilla\SeaMonkey\Profiles\********. »Profile name«

File Format Supported by Mozilla SeaMonkey

Email folders are stored in .mbox file extension and address book contacts are stored in the .mab file extension. Along with these two file extension, SeaMonkey uses many more file extensions and those extensions are given below.

  • .MAR: - Mozilla Archive
  • .EML: - Email Message
  • .MSF: - Mail Summary File.
  • .MAFF: - Mozilla Archive File Format.
  • .XUL: - XML User Interface Language File.
  • .XBL: - Extensible Binding Language File.
  • .RDF: - Resource Description Framework File.

Features of SeaMonkey

This internet suite has many features but a list of some useful features given below.

  • Popup Blocker.
  • Add-on Manager.
  • Web Based Browser.
  • IRC chat also called as “ChatZilla”.
  • Blog and New Feed.
  • Junk Mail Control.
  • Tabbed Mail.
  • Single Click Mail Compose.
  • Standard and Customize Themes.
  • Web Development Tool Like HTML.


This articles has been focus to discuss the What is Mozilla SeaMonkey,features of SeaMonkey, I found that the Mozilla SeaMonkey is the good alternative to other web and mail applications. So if you want a complete Internet Suite then you should go with this package.