SeaMonkey 2.53.21 Beta 1/ 2.53.20 by Mozilla

Mozilla SeaMonkey is an all-in-one internet application suite. It has tabbed web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editor made simple. All your Internet needs contained in one application.

Mozilla SeaMonkey is sure to appeal to advanced users, web developers and corporate users. Because it contains an Internet browser, email and newsgroup client with an included web feed reader, HTML editor, IRC chat and web development tools.

Powered by Mozilla Under the hood, SeaMonkey uses much of the same Mozilla source code which powers such successful siblings as Firefox and Thunderbird.

Building on the same Mozilla platform as the newest Firefox release, it delivers the latest developments in web technologies. Such as HTML5, hardware acceleration and improved JavaScript speed.

SeaMonkey has inherited the successful all-in-one concept of the original Netscape Communicator. And now continues that product line based on the modern, cross-platform architecture provided by the Mozilla project.

Mozilla SeaMonkey Features:

• The Internet browser at the core of the SeaMonkey suite uses the same rendering engine and application platform as its sibling Mozilla Firefox. Also it has popular features like tabbed browsing, feed detection, popup blocking, smart location bar.
• The Mail and Newsgroups client shares lots of code with Mozilla Thunderbird. It includes features adaptive Junk mail filtering, tags and mail views, web feeds reading, tabbed messaging, multiple accounts, S/MIME. Also there are address books with LDAP support and is ready for both private and corporate use.
• Additional components include an easy-to-use HTML Editor, the ChatZilla IRC chat application and web development tools like a DOM Inspector and a JavaScript debugger.
• In addition, you can extend SeaMonkey with numerous Add-Ons that provide additional functionality and customization for a complete Internet experience.

What’s New in Version 2.53.21:

• Unable to load JSON Bookmarks file, Open/Cancel do the same thing
• Move replaceVars helper into menu-manager.js for cZ
• Remove dumpObject helper from utils.js in cZ
• Remove toOpenWindowByType helper from utils.js in cZ
• Fix makeLogName helper to not encode twice in prefs.js in cZ
• Remove use of escapeFileName helper and tidy up pref_mungeName helper in cZ
• Add helper to file-utils.js for ensuring an nsIFile is returned in cZ
• Remove unused http.js file from cZ
• Remove unused IRC tests from static.js in cZ
• Switch from deprecated escape/unescape in cZ
• Tidy up use of prefBranch outside of pref-manager in cZ
• Make use of pref fallbacks in pref-manager in cZ
• Remove unused edit context menu from cZ
• Use XPCOMUtils.generateQI in connection-xpcom in cZ
• Merge menus.xul, popups.xul and scripts.xul into chatzilla.xul
• Make use of toSOutputStream and toSInputStream helpers in DCC code in cZ
• Stop hard-coding commandkey for reloadui in cZ
• Use suite’s FillInHTMLTooltip helper instead of having own version in cZ
• Split custom-away from other away/back commands in cZ
• Remove ChatZilla Homepage link from Help menu and about command in cZ
• Re-arrange toolbar menus in cZ
• Remove ChatZilla Homepage link from about and prefs dialogs in cZ
• Use custom controller for userlist and tidy up some controller use in cZ
• Make use of observes for show/hide elements in cz
• Don’t dynamically create focus-input key element in cZ
• Remove unused toolbar creation code in cZ
• Remove unused updateMenus code from cZ
• Clean up whitespaces in cZ package manifest
• Remove unused uninstallKeys code from cZ
• Use node.remove(), especially instead of node.parentNode.removeChild(node) in cZ
• Remove __cz_condition from cZ
• Remove outputWindowURL pref from cZ
• Remove unused JS tests in cZ
• Use includes, startsWith and endsWith instead of indexOf and substr in cZ
• Use {} and [] instead of new Object() and new Array() in cZ
• Fixup function naming for lint in cZ
• Fixup method naming for lint in cZ
• Remove old Mozilla 1.0 code from updateAppMotif in cZ
• Use throw Components.Exception in cZ
• Migrate output-window from HTML to XHTML to make localisation more standard in cZ
• Merge munger.js into mungers.js in cZ
• Remove unused tagName from mungers.js in cZ
• Flatten directory structure in cZ
• Tidy up about dialog page in cZ
• Add helper to commands.js for sending CTCP commands in cZ
• Migrate to standard menus for menu toolbar in cZ
• Install plugin dialog broken in cZ
• SeaMonkey Composer adds moz-do-not-send attribute for links and images
• Use menu_Toolbars overlay for navigatorOverlay and console
• Remove defunct 2.53 prerelease builds from debugQA extension
• Handling of MOZ_LANGPACK_CONTRIBUTORS in defines.inc files should be less custom
• Control + U shortcut for underlined text is not working
• Context menu search (with default search engine) does not work in the content area of a message compose or SM-Composer window

Homepage – https://www.seamonkey-project.org

System Requirements:

Windows Operating Systems

• Windows 7
• Windows 8
• Windows 8.1
• Windows 10
• Windows 11

Minimum Hardware

• Intel Core 2 Duo 1.8GHz or greater
• AMD Phenom 1.8GHz or greater
• 2 GB RAM for the 32-bit version
• 3 GB RAM for the 64-bit version
• 500 MB of free hard drive space

Mac Operating Systems

• Mac OS X 10.11 or higher

Minimum supported Hardware

• Any Apple Mac running mac OS X 10.11 or higher
• 3 GB RAM
• 500 MB of free hard drive space

Linux Software Requirements

Please note that Linux distributors may provide packages for your distribution which have different requirements.

• The following library versions (or compatible) are required:
  • GTK+ 3.22 or higher
  • GLibc 2.17 or higher
  • Pango 1.22 or higher
  • X.Org 1.20 or higher
  • libstdc++ 4.8.5 or higher

Minimum Hardware

• Intel Core 2 Duo 1.8GHz or greater
• AMD Phenom 1.8GHz or greater
• 2 GB RAM for the 32-bit version
• 3 GB RAM for the 64-bit version
• 500 MB of free hard drive space

Size: 37.5 MB

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