Windows · Free download · General

SeaMonkey

SeaMonkey is a web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple -- all your Internet needs in one application.<ul><li>Tabbed browsing gives you a better way to surf the net.

Operating system
Windows 10/11
File size
39.15 MB
License
Freeware
Last updated
Apr 22, 2026
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Overview

What is SeaMonkey?

SeaMonkey is a web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple -- all your Internet needs in one application.<ul><li>Tabbed browsing gives you a better way to surf the net.

In depth

A closer look at SeaMonkey

SeaMonkey is a web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple -- all your Internet needs in one application.
  • Tabbed browsing gives you a better way to surf the net. You no longer have to open one page at a time. With tabbed browsing, open several pages at once with one click. Plus, your homepage can be multiple pages, in tabs.
  • Popup blocker lets you surf the web without interruption from annoying ads.
  • Image Manager lets you block images to remove offensive images or speed up the rendering of web sites.
  • Find as you type gives you another way to navigate a page. Just start typing to jump from link to link or to find a word or phrase within a page.
  • Plus all the features a modern browser should have including: Advanced security settings; Password, Download, and Cookie managers; Themes; multi-language and multi-platform support; and, the latest in Web Standards.

Requirements

System requirements

Windows XP / Vista / Windows 7 / XP 64-bit / Vista 64-bit / Windows 7 64-bit / Windows 8 / Windows 8 64-bit / Windows 10 / Windows 10 64-bit

Verdict

Should you download SeaMonkey?

SeaMonkey runs on Windows 10/11 and is available under the Freeware license — the installer is 39.15 MB. We’ve catalogued it under General.

Verified clean. Every SeaMonkey build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

SeaMonkey specifications

Category
General
Publisher
Mozilla Organization
Last updated
Apr 22, 2026
Requirements
Windows XP / Vista / Windows 7 / XP 64-bit / Vista 64-bit / Windows 7 64-bit / Windows 8 / Windows 8 64-bit / Windows 10 / Windows 10 64-bit
License
Freeware
Operating system
Windows 10/11
File size
39.15 MB
Price
Free
Page views
527

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