Web Files

SeaMonkey

by Mozilla Corporation · opens 12 file types
Windows
AT A GLANCE
DeveloperMozilla Corporation
PlatformsWindows
Opens12 file types
Get it fromwww.seamonkey-project.org
Download SeaMonkey

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12 file types verified
Last reviewed Sep 2026

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What is SeaMonkey?

SeaMonkey is an open-source internet suite that integrates a web browser, email and newsgroup client, IRC chat client, and HTML editor in a single application. It is the community-maintained successor to the Mozilla Application Suite and shares underlying code with Firefox and Thunderbird. The project is governed by the SeaMonkey Council.

Files SeaMonkey opens

12 formats
Misc Files
Email Files
Data Files
Backup Files

Click any badge for full per-format details - what it is, how to open it and how to convert it.

Download SeaMonkey

SOURCEwww.seamonkey-project.orgofficial site - avoid third-party download portals
PLATFORMSWindows

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programs & formats

Files SeaMonkey opens most

1.MSFMail Summary File (Mozilla Thunderbird / Mork index)
2.SBDMozilla Mail Subdirectory
3.XHTExtensible HyperText Markup Language file
4.JSPAJava Servlet alias file
5.SHTHTML server side include file
6.MOZNetscape temporary cache file

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