SeaMonkey 2.53.23 freeware

SeaMonkey is an all-in-one internet suite developed by Mozilla, seamlessly integrating a web browser, email client, HTML editor, and IRC chat client. Its user-friendly interface caters to both casual users and tech enthusiasts, offering a robust browsing experience with customizable features and strong privacy controls. With a focus on community-driven development, SeaMonkey ensures regular updates and enhancements. Ideal for those seeking a versatile and efficient online toolkit, it stands out ...

Author Mozilla
Released 2026-01-01
Filesize 45.90 MB
Downloads 4210
OS Windows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit
Installation Instal And Uninstall
Keywords SeaMonkey, web browser, email client, IRC chat, browser, browse, mail, client
Users' rating
(95 rating)
SeaMonkeyBrowsersWindows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit
SeaMonkey - Freeware Download Notice

SeaMonkey Free Download - we do not host any SeaMonkey torrent files or links of SeaMonkey on rapidshare.com, depositfiles.com, megaupload.com etc. All SeaMonkey download links are direct SeaMonkey download from publisher site or their selected mirrors.

SeaMonkey freeware - The Latest User Reviews
SeaMonkey freeware - The Latest Versions History
2.53.23 Jan 1, 2026 New Release SeaMonkey 2.53.23 contains (among other changes) the following changes relative to SeaMonkey 2.53.22:
Use PluralForm for known networks in cZ bug 1986545.
Use PluralForm better for known networks in cZ bug 1999832.
Add ESR 140 links to debugQA bug 1993800.
Incorrect SeaMonkey version number in BugSplat crash reports bug 1999135.
Update service name in dataman.js bug 1489573.
The following bugs were fixed in our branch of the Gecko source code only:
Fixed CSS issue by landing part 1 of bug 1363875.
SeaMonkey 2.53.23 contains (among other changes) the following major changes relative to SeaMonkey 2.49.5:
The Bookmarks Manager has switched its name to Library, and now also includes the History list. When History is invoked, the Library will be shown with the History list selected. The extensive modifications were needed because of Mozilla Gecko platform API changes.
Download Manager has been migrated to a new API. Although it looks pretty much the same as before, the search option is missing and some other minor details work differently. The previous downloads history is removed during the upgrade.
The layout panel was added to the CSS Grid tools.
TLS 1.3 is the default SSL version now.
Support for all NPAPI plugins like Flash, Java and Silverlight has been removed. For displaying pdf files in the browser you can use pdf.js-seamonkey from Isaac Schemm.
SeaMonkey now uses a new api for formatting regional data like time and date. Default is to use the application locale of the current SeaMonkey build. If you use a language pack or a different OS formatting this is usually not desired. You can change the formatting from the application locale to the regional settings locale (OS) in the preferences dialog under "Appearance".
2.53.22 Nov 3, 2025 New Release Add Turkish (tr) to SeaMonkey Release builds
Simplify setting context for output window
Remove unused onMessageViewMouseDown from
Inline getViewsContext into initViewsPopup
Inline getFontContext into initFont functions
Migrate to standard menus for context
Move getTabContext and getUserlistContext into menus.js for
Merge file-utils.js into utils.js
Deduplicate code for centering dialogs
Tidy up install-plugin dialog
Colour the security lock
Display the viewName for each tab in the statusbar
Move client header information to title and status bars
Remove unused motifSettings code
Add href link to view names in statusbar
Move network connection status information into statusbar
Move channel mode and user counts out of header
Move user header information into statusbar
Move DCC chat information from header to statusbar
Fix advanceKeyboardFocus
Provide context menu to copy view status href
Error when double clicking empty space in userlist
Remove unused Gecko 1.7.x alert rules
Remove use of removeUsers
Context menu for userlist doesn't toggle both ways for sort and show modes
Move and tidy output and splash code from output-window.js to static.js
Move changeCSS code from output-window.js to static.js
Move scrollToElement function from output-window.js to static.js
Provide modern theme
Port |Bug 1456035 - Add native QueryInterface helper with fast path for XPCWrappedJS| to SeaMonkey
Change Windows Line endings in SeaMonkey source
Null check this.browser in context menu
Null check designMode in context menu
Replace in-tree consumer of non-standard Iterator() with Object.{values,entries}
Restart with add-ons disabled is broken in SeaMonkey 2.53.22b1
Calendar Color Chooser Unresponsive After Calendar Creation
Contains (among other changes) the following major changes relative to SeaMonkey 2.49.5:
The Bookmarks Manager has switched its name to Library, and now also includes the History list. When History is invoked, the Library will be shown with the History list selected. Th
2.53.20 Jan 7, 2025 New Release SeaMonkey 2.53.20 contains (among other changes) the following changes relative to SeaMonkey 2.53.19:
Use Services.focus for bookmarking from mailnews in SeaMonkey bug 1925033.
Replace the Bookmark Manager with the Firefox Library in SeaMonkey: Another followup bug bug 1932731.
Port bug 1458385 - Update SeaMonkey's confvars.sh bug 1913633.
Tidy up channels code in cZ bug 1920565.
Sometimes tag data from an IRC server doesn't contain a pair bug 1923211.
Fix call to updateUsers in network onAway in cZbug 1923213.
Remove unused XTLabelRecord from tree-utils.js in cZbug 1923215.
Remove unused code from connection-xpcom.js in cZbug 1923219.
Remove unusued code from utils.js in cZbug 1923221.
Switch from using arrayContains helper to using JS Array includes method in cZ bug 1923224.
Switch from using arrayIndexOf helper to using JS Array includes and indexOf methods in cZ bug 1923225.
Switch from using arrayRemoveAt and arrayInsertAt helpers to using JS Array splice and unshift methods in cZbug 1923227.
Switch from using stringTrim helper to using JS string trim method in cZ bug 1923229.
Inline newObject function in cZ bug 1924338.
Remove getWindowByType function from cZ bug 1924586.
Inline viewCert function in cZ bug 1924587.
Remove getSpecialDirectory function and use Services.dirsvc in cZ bug 1924588.
Remove getNSSErrorClass function and tidy up NSS related code in cZ bug 1924589.
Tidy message manager code in cZ bug 1924592.
Remove getService helper and tidy up code around its callers in cZ bug 1924595.
Remove use of NSGetModule in cZ bug 1925871.
Tidy up chatzilla-service.js bug 1926406.
Use Intl.DateTimeFormat in cZ's strftime function bug 1927348.
Remove unused code from pref-manager.js in cZ bug 1927370.
Use Services.scriptloader in cZ bug 1927374.
Use more Services in cZ bug 1927376.
Tidy up some Components.* code in static.js in cZ bug 1927377.
Switch to using listbox instead of tree for cZ chat window bug 1927582.
Away status isn't reflected correctly in channel

Most popular Browsers freeware downloads

Google Chrome

145.0.7632.46 freeware download

Fast, secure, and user-friendly web browser that offers a range of features

New Version

Firefox 20

20.0.1 freeware download

Now with a new look, super speed and more awesomeness than ever!

Opera for Mac

102.0.4880.51 freeware download

Faster, safer and smarter than default browsers

Google Chrome Portable

129.0.6668.59 freeware download

Google Chrome Portable: Fast, secure browser on the go, no installation needed.

SevenTh Browser

1.0.67 freeware download

With SevenTh Browser you can also add and manage bookmarks. It has a simple and

Akoware Web View

2.5 freeware download

A small and lightweight web browser for your browsing

Internet Explorer 10

10.0.9200.16521 freeware download

Internet Explorer 10 takes the lead in browser privacy

Utilu IE Collection

1.7.2.1 freeware download

Utilu IE Collection contains multiple standalone versions of IE.

5 freeware award

Maxthon

7.3.1.3600 freeware download

Maxthon: A versatile, secure, and fast web browser for seamless internet browsing.

5 freeware award

Tungsten Portable

2.10 freeware download

Enables you to open several webpages in separate tabs, bookmark websites