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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en" dir="ltr"> <head> <title>The SeaMonkey® Project</title> <link rel="stylesheet" type="text/css" href="/css/base/template.css" media="screen"> <link rel="stylesheet" type="text/css" href="/css/base/content.css" media="screen"> <link rel="stylesheet" type="text/css" href="/css/artemia/template.css" title="Artemia Nyos" media="screen"> <link rel="stylesheet" type="text/css" href="/css/artemia/content.css" title="Artemia Nyos" media="screen"> <link rel="icon" href="/images/seamonkey16.png" type="image/png"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="Content-Language" content="en"> <meta http-equiv="Content-Style-Type" content="text/css"> <link rel="alternate" href="news-atom" title="SeaMonkey Project News - Atom-Feed" type="application/atom+xml"> <link rel="top" href="./" title="SeaMonkey Project">  <script type="text/javascript" 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text-align: center;"> <span><a href="https://go.nordvpn.net/aff_c?offer_id=15&aff_id=81347&url_id=902" target="_blank"> Partnered with NordVPN</a></span><br> <img src="/images/nordvpn-banner.png" width="240" height="240"> </div> </div> <div id="mainContent"> <div class="key-point"> <div id="product-desc" class="product-seamonkey"> <h2><img src="/images/seamonkey_logo.png" height="105" width="340" alt="SeaMonkey 2.53.20"></h2> <p> Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing made simple—all your Internet needs in one application. </p> <ul> <li><a href="doc/features">Features</a> · <a href="doc/screenshots">Screenshots</a></li> <li><a href="./releases/seamonkey2.53.20/">Release Notes</a></li> </ul> </div> <div id="product-side"> <div class="download"> <h3>Download Now</h3> <b>SeaMonkey 2.53.20</b> <br> <span class="download-label">Platform:</span> <b class="download-content" id="info_platform"></b> <br> <span class="download-label">Language:</span> <b class="download-content" id="info_language"></b> <ul> <li id="download_icon" class="download-win"><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/en-US/seamonkey-2.53.20.en-US.win32.installer.exe" id="download_link" data-title="Download SeaMonkey 2.53.20 for %platform in %language" class="main" data-display-name="SeaMonkey 2.53.20" data-version="2.53.20" data-platform="win64" data-language="en-US"> Download Now </a></li> <li id="download-other" class="other"><a href="./releases/#2.53.20">Other Systems & Languages</a></li> </ul> </div> </div> </div> <div id="download_fieldset" style="display: none;"> <fieldset> <p class="select-platform"> <label for="download_platform" class="select-label">Which operating system are you using?</label> <select id="download_platform" class="select-input" aria-controls="download_info"> <option value="win64">Windows x64</option> <option value="win">Windows x86</option> <option value="osx">macOS x64</option> <option value="linux64">Linux x64</option> <option value="linux">Linux x86</option> </select> </p> <p class="select-language"> <label for="download_language" class="select-label">Would you like to select a different language?</label> <select id="download_language" class="select-input" aria-controls="download_info"> <option value="zh-CN">Chinese (Simplified) — 中文 (简体)</option> <option value="zh-TW">Chinese (Traditional) — 正體中文 (繁體)</option> <option value="cs">Czech — Čeština</option> <option value="nl">Dutch — Nederlands</option> <option value="en-GB">English (British)</option> <option value="en-US">English (US)</option> <option value="fi">Finnish — suomi</option> <option value="fr">French — Français</option> <option value="ka">Georgian — ქართული</option> <option value="de">German — Deutsch</option> <option value="el">Greek — Ελληνικά</option> <option value="hu">Hungarian — magyar</option> <option value="it">Italian — Italiano</option> <option value="ja">Japanese — 日本語</option> <option value="nb-NO">Norwegian (Bokmål) — Norsk bokmål</option> <option value="pl">Polish — Polski</option> <option value="pt-BR">Portuguese (Brazilian) — Português (do Brasil)</option> <option value="pt-PT">Portuguese (Portugal) — Português (Europeu)</option> <option value="ru">Russian — Русский</option> <option value="sk">Slovak — slovenčina</option> <option value="es-AR">Spanish (Argentina) — Español (de Argentina)</option> <option value="es-ES">Spanish (Spain) — Español (de España)</option> <option value="sv-SE">Swedish — Svenska</option> </select> </p> </fieldset> </div> <div style="display: none;"> <table class="downloads" cellpadding="0" cellspacing="0" summary="SeaMonkey builds available for download."> <thead> <tr> <th colspan="2" class="top-left">Language</th> <th>Version</th> <th><span class="download-win">Windows<br>x64</span></th> <th><span class="download-win">Windows<br>x86</span></th> <th><span class="download-mac">macOS<br>x64</span></th> <th><span class="download-linux">Linux<br>x64</span></th> <th class="top-right"><span class="download-linux">Linux<br>x86</span></th> </tr> </thead> <tfoot> <tr> <td class="bottom-left"></td> <td colspan="6"></td> <td class="bottom-right"></td> </tr> </tfoot> <tbody> <tr id="zh-CN" class="odd"> <td>Chinese (Simplified)</td> <td lang="zh-CN">中文 (简体)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/zh-CN/seamonkey-2.53.20.zh-CN.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/zh-CN/seamonkey-2.53.20.zh-CN.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/zh-CN/seamonkey-2.53.20.zh-CN.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/zh-CN/seamonkey-2.53.20.zh-CN.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/zh-CN/seamonkey-2.53.20.zh-CN.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="zh-TW" class="even"> <td>Chinese (Traditional)</td> <td lang="zh-TW">正體中文 (繁體)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/zh-TW/seamonkey-2.53.20.zh-TW.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/zh-TW/seamonkey-2.53.20.zh-TW.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/zh-TW/seamonkey-2.53.20.zh-TW.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/zh-TW/seamonkey-2.53.20.zh-TW.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/zh-TW/seamonkey-2.53.20.zh-TW.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="cs" class="odd"> <td>Czech</td> <td lang="cs">Čeština</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/cs/seamonkey-2.53.20.cs.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/cs/seamonkey-2.53.20.cs.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/cs/seamonkey-2.53.20.cs.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/cs/seamonkey-2.53.20.cs.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/cs/seamonkey-2.53.20.cs.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="nl" class="even"> <td>Dutch</td> <td lang="nl">Nederlands</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/nl/seamonkey-2.53.20.nl.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/nl/seamonkey-2.53.20.nl.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/nl/seamonkey-2.53.20.nl.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/nl/seamonkey-2.53.20.nl.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/nl/seamonkey-2.53.20.nl.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="en-GB" class="odd"> <td>English (British)</td> <td lang="en-GB">English (British)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/en-GB/seamonkey-2.53.20.en-GB.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/en-GB/seamonkey-2.53.20.en-GB.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/en-GB/seamonkey-2.53.20.en-GB.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/en-GB/seamonkey-2.53.20.en-GB.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/en-GB/seamonkey-2.53.20.en-GB.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="en-US" class="even"> <td>English (US)</td> <td lang="en-US">English (US)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/en-US/seamonkey-2.53.20.en-US.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/en-US/seamonkey-2.53.20.en-US.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/en-US/seamonkey-2.53.20.en-US.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/en-US/seamonkey-2.53.20.en-US.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/en-US/seamonkey-2.53.20.en-US.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="fi" class="odd"> <td>Finnish</td> <td lang="fi">suomi</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/fi/seamonkey-2.53.20.fi.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/fi/seamonkey-2.53.20.fi.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/fi/seamonkey-2.53.20.fi.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/fi/seamonkey-2.53.20.fi.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/fi/seamonkey-2.53.20.fi.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="fr" class="even"> <td>French</td> <td lang="fr">Français</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/fr/seamonkey-2.53.20.fr.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/fr/seamonkey-2.53.20.fr.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/fr/seamonkey-2.53.20.fr.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/fr/seamonkey-2.53.20.fr.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/fr/seamonkey-2.53.20.fr.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="ka" class="odd"> <td>Georgian</td> <td lang="ka">ქართული</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/ka/seamonkey-2.53.20.ka.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/ka/seamonkey-2.53.20.ka.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/ka/seamonkey-2.53.20.ka.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/ka/seamonkey-2.53.20.ka.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/ka/seamonkey-2.53.20.ka.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="de" class="even"> <td>German</td> <td lang="de">Deutsch</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/de/seamonkey-2.53.20.de.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/de/seamonkey-2.53.20.de.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/de/seamonkey-2.53.20.de.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/de/seamonkey-2.53.20.de.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/de/seamonkey-2.53.20.de.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="el" class="odd"> <td>Greek</td> <td lang="el">Ελληνικά</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/el/seamonkey-2.53.20.el.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/el/seamonkey-2.53.20.el.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/el/seamonkey-2.53.20.el.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/el/seamonkey-2.53.20.el.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/el/seamonkey-2.53.20.el.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="hu" class="even"> <td>Hungarian</td> <td lang="hu">Magyar</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/hu/seamonkey-2.53.20.hu.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/hu/seamonkey-2.53.20.hu.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/hu/seamonkey-2.53.20.hu.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/hu/seamonkey-2.53.20.hu.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/hu/seamonkey-2.53.20.hu.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="it" class="odd"> <td>Italian</td> <td lang="it">Italiano</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/it/seamonkey-2.53.20.it.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/it/seamonkey-2.53.20.it.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/it/seamonkey-2.53.20.it.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/it/seamonkey-2.53.20.it.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/it/seamonkey-2.53.20.it.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="ja" class="even"> <td>Japanese</td> <td lang="ja">日本語</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/ja/seamonkey-2.53.20.ja.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/ja/seamonkey-2.53.20.ja.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/ja-JP-mac/seamonkey-2.53.20.ja-JP-mac.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/ja/seamonkey-2.53.20.ja.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/ja/seamonkey-2.53.20.ja.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="nb-NO" class="odd"> <td>Norwegian (Bokmål)</td> <td lang="nb-NO">Norsk bokmål</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/nb-NO/seamonkey-2.53.20.nb-NO.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/nb-NO/seamonkey-2.53.20.nb-NO.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/nb-NO/seamonkey-2.53.20.nb-NO.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/nb-NO/seamonkey-2.53.20.nb-NO.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/nb-NO/seamonkey-2.53.20.nb-NO.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="pl" class="even"> <td>Polish</td> <td lang="pl">Polski</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/pl/seamonkey-2.53.20.pl.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/pl/seamonkey-2.53.20.pl.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/pl/seamonkey-2.53.20.pl.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/pl/seamonkey-2.53.20.pl.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/pl/seamonkey-2.53.20.pl.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="pt-BR" class="odd"> <td>Portuguese (Brazilian)</td> <td lang="pt-BR">Português (do Brasil)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/pt-BR/seamonkey-2.53.20.pt-BR.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/pt-BR/seamonkey-2.53.20.pt-BR.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/pt-BR/seamonkey-2.53.20.pt-BR.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/pt-BR/seamonkey-2.53.20.pt-BR.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/pt-BR/seamonkey-2.53.20.pt-BR.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="pt-PT" class="even"> <td>Portuguese (Portugal)</td> <td lang="pt-PT">Português (Europeu)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/pt-PT/seamonkey-2.53.20.pt-PT.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/pt-PT/seamonkey-2.53.20.pt-PT.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/pt-PT/seamonkey-2.53.20.pt-PT.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/pt-PT/seamonkey-2.53.20.pt-PT.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/pt-PT/seamonkey-2.53.20.pt-PT.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="ru" class="odd"> <td>Russian</td> <td lang="ru">Русский</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/ru/seamonkey-2.53.20.ru.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/ru/seamonkey-2.53.20.ru.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/ru/seamonkey-2.53.20.ru.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/ru/seamonkey-2.53.20.ru.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/ru/seamonkey-2.53.20.ru.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="sk" class="even"> <td>Slovak</td> <td lang="sk">slovenčina</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/sk/seamonkey-2.53.20.sk.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/sk/seamonkey-2.53.20.sk.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/sk/seamonkey-2.53.20.sk.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/sk/seamonkey-2.53.20.sk.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/sk/seamonkey-2.53.20.sk.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="es-AR" class="odd"> <td>Spanish (Argentina)</td> <td lang="es-AR">Español (de Argentina)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/es-AR/seamonkey-2.53.20.es-AR.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/es-AR/seamonkey-2.53.20.es-AR.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/es-AR/seamonkey-2.53.20.es-AR.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/es-AR/seamonkey-2.53.20.es-AR.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/es-AR/seamonkey-2.53.20.es-AR.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="es-ES" class="even"> <td>Spanish (Spain)</td> <td lang="es-ES">Español (de España)</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/es-ES/seamonkey-2.53.20.es-ES.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/es-ES/seamonkey-2.53.20.es-ES.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/es-ES/seamonkey-2.53.20.es-ES.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/es-ES/seamonkey-2.53.20.es-ES.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/es-ES/seamonkey-2.53.20.es-ES.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> <tr id="sv-SE" class="odd"> <td>Swedish</td> <td lang="sv-SE">Svenska</td> <td class="curVersion">2.53.20</td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win64/sv-SE/seamonkey-2.53.20.sv-SE.win64.installer.exe" class="download-win" data-platform="win64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/win32/sv-SE/seamonkey-2.53.20.sv-SE.win32.installer.exe" class="download-win" data-platform="win">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/mac/sv-SE/seamonkey-2.53.20.sv-SE.mac.dmg" class="download-mac" data-platform="osx">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-x86_64/sv-SE/seamonkey-2.53.20.sv-SE.linux-x86_64.tar.bz2" class="download-linux" data-platform="linux64">Download</a></td> <td><a href="https://archive.seamonkey-project.org/releases/2.53.20/linux-i686/sv-SE/seamonkey-2.53.20.sv-SE.linux-i686.tar.bz2" class="download-linux" data-platform="linux">Download</a></td> </tr> </tbody> </table> </div> <script type="text/javascript">  </script> <h1>The SeaMonkey<sup>®</sup> Project</h1> <p> The SeaMonkey project is a community effort to develop the SeaMonkey Internet Application Suite (see below). Such a software suite was previously made popular by Netscape and Mozilla, and the SeaMonkey project continues to develop and deliver high-quality updates to this concept. Containing an Internet browser, email & newsgroup client with an included web feed reader, HTML editor, IRC chat and web development tools, SeaMonkey is sure to appeal to advanced users, web developers and corporate users. </p> <p> Under the hood, SeaMonkey uses much of the same Mozilla Firefox source code which powers such products as <a href="https://www.thunderbird.net"> Thunderbird</a>. Legal backing is provided by the SeaMonkey Association (SeaMonkey e.V.). </p> <h2><div class="feedlink"><a href="news-atom" title="SeaMonkey News - Atom 1.0 feed"><img src="/images/feed.png" height="16" width="16" alt=""></a></div><a href="news">Project News</a></h2> <h4 class="newsdate">January 12, 2025</h4> <p><strong>January 6th, 2025 was a sad day for SeaMonkey and all of us</strong></p> <p> Our friend, SeaMonkey developer and releng William Andrew Gianopoulos, better known as WG9s, passed away unexpectedly on Monday, January 6, 2025. </p> <p> Visit his <a href="https://www.chesmorefuneralhome.com/obituaries/william-andrew-gianopoulos/20284/"> obituary</a> for further details and, if you feel so, add a condolence message. </p> <p> We are still all very sad and will miss him and his cat Bella much. Light a candle for him and remember: No one is really dead unless you stop thinking about him or her and we won't forget him and what he did for sure. </p> <p> He left a big hole and we will see what we can do about publishing prerelease builds in the future. </p> <p> Rest in Peace Bill </p> <h4 class="newsdate">January 7, 2025</h4> <p><strong>SeaMonkey 2.53.20 released</strong></p> <p> The SeaMonkey project is proud to present SeaMonkey 2.53.20: The new release of the all-in-one Internet suite is <a href="releases/2.53.20">available for free download now</a>! </p> <p> 2.53.20 is an incremental update on the 2.53.x branch and incorporates a number of enhancements, changes and fixes to the application as well as those from the underlying platform code. We have also added many fixes and backports for overall platform stability. </p> <p> Please be advised that the minimum requirements for running SeaMonkey under Linux have changed. We are building on Rocky 8 Linux now and the dependencies are picked up from the builder library levels. The new minimum requirements are glibc 2.28, glib 2.56, gtk+2 2.24, gtk3 3.22.30 and pixman 0.36. See <a href="http://udn.realityripple.com/docs/Mozilla/Firefox/Linux_compatibility_matrix"> Linux compatibility matrix</a>. This only applies for the official binary releases from our server. Distribution specific versions might have different minimum version requirements. </p> <p> If you are using macOS 15.1.x please update to 15.2. Because of a bug in the OS SeaMonkey can not be started via Finder or Dock without workarounds. This applies to older versions too. </p> <p> We are aware of numerous websites breaking because of only supporting the latest Chrome or Firefox versions. We are trying to address this and progress has been made in a different source code branch but the code is not ready for general distribution yet. </p> <p> SeaMonkey 2.53.20 is available in 23 languages, for Windows, macOS x64 and Linux. </p> <p> <b>Automatic upgrades from previous 2.53.x versions are enabled for this release, but if you have problems with it please download the full installer from the downloads section and install SeaMonkey 2.53.20 manually over the previous version.</b><br> </p> <p> For a more complete list of major changes in SeaMonkey 2.53.20, see the <a href="releases/seamonkey2.53.20/#new">What's New in SeaMonkey 2.53.20</a> section of the <a href="releases/seamonkey2.53.20/">Release Notes</a>, which also contains a list of known issues and answers to frequently asked questions. For a more general overview of the SeaMonkey project (and <a href="doc/screenshots">screen shots</a>!), visit <a href="https://www.seamonkey-project.org/">www.seamonkey-project.org</a>. </p> <p> We encourage users to <a href="dev/get-involved">get involved</a> in discussing and reporting problems as well as further improving the product. </p> <h4 class="newsdate">December 19, 2024</h4> <p><strong>SeaMonkey 2.53.20 Beta 1 released</strong></p> <p> SeaMonkey 2.53.20 Beta 1 is <a href="releases/2.53.20b1">now available for free download</a> on the SeaMonkey website. </p> <p> 2.53.20 will be an incremental update on the 2.53.x branch and incorporates a number of enhancements, changes and fixes to the application as well as those from the underlying platform code. <b>Before installing the new version make a full backup of your profile and thoroughly read and follow the <a href="releases/seamonkey2.53.20/">Release Notes</a></b>. We encourage testers to <a href="dev/get-involved">get involved</a> in discussing and reporting problems as well as further improving the product. </p> <p> Please be advised that the minimum requirements for running SeaMonkey under Linux have changed. We are building on Rocky 8 Linux now and the dependencies are picked up from the builder library levels. The new minimum requirements are glibc 2.28, glib 2.56, gtk+2 2.24, gtk3 3.22.30 and pixman 0.36. See <a href="http://udn.realityripple.com/docs/Mozilla/Firefox/Linux_compatibility_matrix"> Linux compatibility matrix</a>. This only applies for the official binary releases from our server. Distribution specific versions might have different minimum version requirements. </p> <p> If you are using macOS 15.1.x please update to 15.2. Because of a bug in the OS SeaMonkey can not be started via Finder or Dock without workarounds. This applies to older versions too. </p> <p> We are aware of numerous websites breaking because of only supporting the latest Chrome or Firefox versions. We are trying to address this and progress has been made in a different source code branch but the code is not ready for general distribution yet. </p> <p> SeaMonkey 2.53.20 Beta 1 is available in 23 languages, for Windows, macOS x64 and Linux. </p> <h4 class="newsdate">November 6, 2022</h4> <p><strong>SeaMonkey and macOS Ventura</strong></p> <p> Attention macOS users! The current SeaMonkey release crashes during startup after upgrading to macOS 13 Ventura. Until we have a fix we advise you not to upgrade your macOS installation to Ventura. No usable crash information is generated and this might take a bit longer than usual to fix. This is not a problem with Monterey 12.6.1 or any lower supported macOS version so might even be an Apple bug. </p> <p> The problem is tracked in <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1797696">Bug 1797696</a>. </p> <h2>The SeaMonkey Internet Application Suite</h2> <p> SeaMonkey has inherited the successful all-in-one concept of the original Netscape Communicator and continues that product line based on the modern, cross-platform architecture provided by the <a href="http://www.mozilla.org/">Mozilla project</a>. </p> <ul> <li>The <a href="doc/features#browser">Internet browser</a> at the core of the SeaMonkey Internet Application Suite uses the same rendering engine and application platform as Mozilla Firefox, with popular features like tabbed browsing, feed detection, popup blocking, smart location bar, find as you type and a lot of other functionality for a smooth web experience.</li> <li>SeaMonkey's <a href="doc/features#mail">Mail and Newsgroups</a> client shares lots of code with Thunderbird and features adaptive Junk mail filtering, tags and mail views, web feeds reading, tabbed messaging, multiple accounts, S/MIME, address books with LDAP support and is ready for both private and corporate use.</li> <li>Additional components include an easy-to-use <a href="doc/features#composer">HTML Editor</a>, the ChatZilla IRC chat application and web development tools like a DOM Inspector.</li> <li>If that's still not enough, SeaMonkey can be extended with numerous <a href="https://addons.thunderbird.net/seamonkey/">Add-Ons</a> that provide additional functionality and customization for a complete Internet experience.</li> </ul> <address> </address> </div> </div> <div id="footer"> <ul id="footer-menu"> <li><a href="./sitemap">Site Map</a></li> <li><a href="http://www.mozilla.org/security/">Security Updates</a></li> <li><a href="./about">About SeaMonkey</a></li> <li><a href="./about#contact">Contact Us</a></li> </ul> <p class="tLicense">SeaMonkey and the SeaMonkey logo are <a href="./legal/trademark">registered trademarks</a> of the <a href="./">SeaMonkey Association (SeaMonkey e.V.)</a>.</p> <p class="tLicense">Portions of this content are © 1998–2025 by individual mozilla.org contributors; content available under a Creative Commons license | <a href="http://www.mozilla.org/foundation/licensing/website-content.html">Details</a>.</p> <ul class="site-tools"> <li>Last modified February 06, 2025</li> <li><a href="https://foss.heptapod.net/seamonkey/website/-/commits/branch/default/src/index.en.html">Document History</a></li> </ul> </div> </body> </html>