SeaMonkey 2.17.1

v2.17 [04-05-13]

SeaMonkey 2.17 contains the following major changes relative to SeaMonkey 2.16: SeaMonkey-specific changes

• None. See

v2.16.2 [03-15-13]

SeaMonkey 2.16 contains the following major changes relative to SeaMonkey 2.15: SeaMonkey-specific changes

• Reply to List is now supported.
• SSL-related warning prompts (leaving or entering a secure site, viewing mixed content) have been replaced by less intrusive, non-modal notification bars.
• See

v2.16.1 [03-10-13]

SeaMonkey 2.16 contains the following major changes relative to SeaMonkey 2.15: SeaMonkey-specific changes

• Reply to List is now supported.
• SSL-related warning prompts (leaving or entering a secure site, viewing mixed content) have been replaced by less intrusive, non-modal notification bars.
• See

v2.16 [02-28-13]

SeaMonkey 2.16 contains the following major changes relative to SeaMonkey 2.15: SeaMonkey-specific changes

• Reply to List is now supported.
• SSL-related warning prompts (leaving or entering a secure site, viewing mixed content) have been replaced by less intrusive, non-modal notification bars.
• See

v2.15.2 [02-07-13]

SeaMonkey 2.15 contains the following major changes relative to SeaMonkey 2.14: SeaMonkey-specific changes

• SeaMonkey can be set as default client/browser on Mac and Linux now.
• See

v2.15.1 [01-27-13]

SeaMonkey 2.15 contains the following major changes relative to SeaMonkey 2.14: SeaMonkey-specific changes

• SeaMonkey can be set as default client/browser on Mac and Linux now.
• See

v2.15 [01-18-13]

SeaMonkey 2.15 contains the following major changes relative to SeaMonkey 2.14: SeaMonkey-specific changes

• SeaMonkey can be set as default client/browser on Mac and Linux now.
• See

v2.14.1 [12-05-12]

SeaMonkey 2.14 contains the following major changes relative to SeaMonkey 2.13: SeaMonkey-specific changes

• None (see changes page for minor changes).

Mozilla platform changes

• OS X 10.6 is now the minimum supported Mac version.
• JavaScript Maps and Sets are now iterable.
• SVG FillPaint and StrokePaint have been implemented.
• The sandbox attribute has been implemented for iframes, enabling increased security.
• Fixed several stability issues.

v2.14 [11-21-12]

SeaMonkey 2.14 contains the following major changes relative to SeaMonkey 2.13: SeaMonkey-specific changes

• None (see changes page for minor changes).

Mozilla platform changes

• OS X 10.6 is now the minimum supported Mac version.
• JavaScript Maps and Sets are now iterable.
• SVG FillPaint and StrokePaint have been implemented.
• The sandbox attribute has been implemented for iframes, enabling increased security.
• Fixed several stability issues.

v2.13.2 [11-04-12]

SeaMonkey 2.13 contains the following major changes relative to SeaMonkey 2.12: SeaMonkey-specific changes

• None (see changes page for minor changes).

Mozilla platform changes

• JavaScript responsiveness has been improved through incremental garbage collection.
• CSS3 Animations, Transitions, Transforms and Gradients have been unprefixed.
• MD5 is no longer supported as a hash algorithm in digital signatures.
• The Opus codec is now support by default.
• The reverse CSS3 animation direction has been implemented.
• Per tab reporting is now available in about:memory.
• Fixed several stability issues.

v2.13.1 [10-21-12]

SeaMonkey 2.13 contains the following major changes relative to SeaMonkey 2.12: SeaMonkey-specific changes

• None.

Mozilla platform changes

• JavaScript responsiveness has been improved through incremental garbage collection.
• CSS3 Animations, Transitions, Transforms and Gradients have been unprefixed.
• MD5 is no longer supported as a hash algorithm in digital signatures.
• The Opus codec is now support by default.
• The reverse CSS3 animation direction has been implemented.
• Per tab reporting is now available in about:memory.
• Fixed several stability issues.

v2.13 [10-11-12]

SeaMonkey 2.13 contains the following major changes relative to SeaMonkey 2.12: SeaMonkey-specific changes

• None.

Mozilla platform changes

• JavaScript responsiveness has been improved through incremental garbage collection.
• CSS3 Animations, Transitions, Transforms and Gradients have been unprefixed.
• MD5 is no longer supported as a hash algorithm in digital signatures.
• The Opus codec is now support by default.
• The reverse CSS3 animation direction has been implemented.
• Per tab reporting is now available in about:memory.
• Fixed several stability issues.

v2.12.1 [09-11-12]

SeaMonkey 2.12 contains the following major changes relative to SeaMonkey 2.11: SeaMonkey-specific changes

• None.

Mozilla platform changes

• Added support for SPDY networking protocol v3.
• Implemented WebGL enhancements, including compressed textures for better performance.
• Optimized memory usage for add-ons.
• Implemented the CSS word-break property.
• Implemented high precision event timer.
• HTML5: Added native support for the Opus audio codec.
• HTML5: Added support for the source element media attribute.
• HTML5: Added support for the audio element and video element played attribute.
• Fixed several stability issues.

v2.12 [08-30-12]

SeaMonkey 2.12 contains the following major changes relative to SeaMonkey 2.11: SeaMonkey-specific changes

• None.

Mozilla platform changes

• Added support for SPDY networking protocol v3.
• Implemented WebGL enhancements, including compressed textures for better performance.
• Optimized memory usage for add-ons.
• Implemented the CSS word-break property.
• Implemented high precision event timer.
• HTML5: Added native support for the Opus audio codec.
• HTML5: Added support for the source element media attribute.
• HTML5: Added support for the audio element and video element played attribute.
• Fixed several stability issues.

v2.11 [07-25-12]

SeaMonkey 2.11 contains the following major changes relative to SeaMonkey 2.10: SeaMonkey-specific changes

• A click-to-play option (off by default for now) has been implemented for plugins.

Mozilla platform changes

• The Pointer Lock API has been implemented.
• A new API to prevent your display from sleeping is available.
• New text-transform and font-variant CSS improvements have been made for Turkic languages and Greek.
• Fixed several stability issues.

v2.10.1 [07-09-12]

SeaMonkey 2.10 contains the following major changes relative to SeaMonkey 2.9: SeaMonkey-specific changes

• The domain name is highlighted in the location bar by default now, configurable in Preferences.
• The amount of tabs to be restored concurrently can be configured in Preferences now.
• News username and password auth dialogs have been combined and show for which server the prompt is now.

Mozilla platform changes

• The new minimum supported Windows version is now XP SP2, Windows 2000 support has been dropped.
• The SPDY protocol now enabled by default for faster browsing on supported sites
• The column-fill CSS property has been implemented.
• Experimental support for ECMAScript 6 Map and Set objects has been implemented.
• Support for the CSS3 background-position property extended syntax has been added.
• The :invalid pseudo-class can now be applied to the
  element.
• The CSS turn unit is now supported.
• Fixed several stability issues.

v2.10 [06-09-12]

SeaMonkey 2.10 contains the following major changes relative to SeaMonkey 2.9: SeaMonkey-specific changes

• The domain name is highlighted in the location bar by default now, configurable in Preferences.
• The amount of tabs to be restored concurrently can be configured in Preferences now.
• News username and password auth dialogs have been combined and show for which server the prompt is now.

Mozilla platform changes

• The new minimum supported Windows version is now XP SP2, Windows 2000 support has been dropped.
• The SPDY protocol now enabled by default for faster browsing on supported sites
• The column-fill CSS property has been implemented.
• Experimental support for ECMAScript 6 Map and Set objects has been implemented.
• Support for the CSS3 background-position property extended syntax has been added.
• The :invalid pseudo-class can now be applied to the element.
• The CSS turn unit is now supported.
• Fixed several stability issues.

v2.9.1 [05-18-12]

SeaMonkey 2.9.1 contains the following major changes relative to SeaMonkey 2.8: SeaMonkey-specific changes

• The File and Move Bookmarks dialogs are resizable now.
• HTML5 videos that do not start automatically show a large play button now.
• Add-ons Sync can now be configured without the Add-ons Sync Prefs add-on.
• Pasting a URL from the clipboard into the Download Manager window will download it.
• Plugins can be disabled for the whole suite now in addition to Mail & Newsgroups only.

Mozilla platform changes

• View Source now has line numbers.
• Line breaks are now supported in the title attribute.
• Find in Page search results are scrolled into view now.
• The column-fill CSS property has been implemented.
• Support for the text-align-last CSS property has been added.
• Experimental support for ECMAScript 6 Map and Set objects has been implemented.
• Fixed several stability issues.

v2.8 [03-15-12]

SeaMonkey 2.8 contains the following major changes relative to SeaMonkey 2.7: SeaMonkey-specific changes

• Support for migrating from old profiles (before SeaMonkey 2.0) has been dropped (bug 689437).

Mozilla platform changes

• New Add-ons Sync engine (install the Add-ons Sync Prefs add-on to enable it in Preferences).
• The CSS text-size-adjust property is now supported.
• The outerHTML property is now supported on HTML elements.
• View source syntax highlighting now uses the HTML5 parser (see bug 482921).
• SPDY protocol support for faster page loads is now testable.
• XMLHttpRequest now supports HTML parsing.
• Files can now be stored in IndexedDB (see bug 661877).
• Websockets has now been unprefixed.
• Redesigned media controls for HTML5 video.
• Fixed several stability issues.

v2.7.2 [03-05-12]

SeaMonkey 2.7.2 contains the following major changes relative to SeaMonkey 2.6: SeaMonkey-specific changes

• Add-ons are compatible by default now, provided they are declared compatible with SeaMonkey version 2.1 or better (bug 702792).
• A major MailNews bug has been fixed: Under certain conditions, entire newsgroups were marked as unread and authentication data (user name and password) was lost (bug 695309).

Mozilla platform changes

• Anti-Aliasing for WebGL is now implemented (see bug 615976).
• CSS3 3D-Transforms are now supported (see bug 505115).
• New element for bi-directional text isolation, along with supporting CSS properties (see bug 613149 and bug 662288).
• Added IndexedDB APIs to more closely match the specification.
• Fixed several stability issues.

v2.7 [02-03-12]

SeaMonkey 2.7 contains the following major changes relative to SeaMonkey 2.6: SeaMonkey-specific changes

• Add-ons are compatible by default now, provided they are declared compatible with SeaMonkey version 2.1 or better (bug 702792).

Mozilla platform changes

• Anti-Aliasing for WebGL is now implemented (see bug 615976).
• CSS3 3D-Transforms are now supported (see bug 505115).
• New element for bi-directional text isolation, along with supporting CSS properties (see bug 613149 and bug 662288).
• Added IndexedDB APIs to more closely match the specification.
• Fixed several stability issues.

v2.6.1 [12-23-11]

SeaMonkey 2.6.1 contains the following major changes relative to SeaMonkey 2.5: SeaMonkey-specific changes

• Added support for the HTML5 "context menu" feature (contextmenu attribute)
• Added Print Preview support to Composer
• Added update channel indication to About SeaMonkey page (about:)

Mozilla platform changes

• Added Type Inference, significantly improving JavaScript performance
• Added support for querying Do Not Track status via JavaScript
• Added support for font-stretch
• Improved support for text-overflow
• Improved standards support for HTML5, MathML, and CSS
• Fixed several stability issues

v2.5 [11-27-11]

SeaMonkey 2.5 contains the following major changes relative to SeaMonkey 2.4:

• None (see

v2.4.1 [10-06-11]

SeaMonkey 2.4.1 contains the following major changes relative to SeaMonkey 2.3:

• None.

Mozilla platform changes

• Drastically improved memory use
• Added a new rendering backend to speed up Canvas operations on Windows systems
• Bookmark and password changes now sync almost instantly when using Sync
• Added support for text-overflow: ellipsis
• Added support for the Web Timing specification
• The last download target directory is now remembered on a per-site basis
• Fixed several stability issues

v2.4 [09-28-11]

SeaMonkey 2.4 contains the following major changes relative to SeaMonkey 2.3:

• None.

Mozilla platform changes

• Drastically improved memory use
• Added a new rendering backend to speed up Canvas operations on Windows systems
• Bookmark and password changes now sync almost instantly when using Sync
• Added support for text-overflow: ellipsis
• Added support for the Web Timing specification
• Fixed several stability issues

v2.3.3 [09-07-11]

SeaMonkey 2.3.3 contains the following major changes relative to SeaMonkey 2.2:

• (SeaMonkey 2.3.3) - Removed trust exceptions for certificates issued by Staat der Nederlanden (see bug 683449 and the security advisory)
• (SeaMonkey 2.3.3) - Resolved an issue with gov.uk websites (see bug 669792)
• (SeaMonkey 2.3.2) - Revoked the root certificate for DigiNotar due to fraudulent SSL certificate issuance (see bug 682927 and the security advisory)
• Several fixes when importing email from Microsoft Outlook

Mozilla platform changes

• Added support for the latest draft version of WebSockets with a prefixed API
• Added support for EventSource / server-sent events
• Added support for window.matchMedia
• Added a plugins check link to the Plugins pane of the Add-ons Manager
• Added support for the element, touch events and Server-Sent Events

v2.3.2 [09-01-11]

SeaMonkey 2.3.2 contains the following major changes relative to SeaMonkey 2.2:

• (SeaMonkey 2.3.2) - Revoked the root certificate for DigiNotar due to fraudulent SSL certificate issuance (see bug 682927 and the security advisory)
• Several fixes when importing email from Microsoft Outlook

Mozilla platform changes

• Added support for the latest draft version of WebSockets with a prefixed API
• Added support for EventSource / server-sent events
• Added support for window.matchMedia
• Added a plugins check link to the Plugins pane of the Add-ons Manager
• Added support for the element, touch events and Server-Sent Events

v2.3.1 [08-30-11]

SeaMonkey 2.3.1 contains the following major changes relative to SeaMonkey 2.2:

• Several fixes when importing email from Microsoft Outlook

Mozilla platform changes

• Added support for the latest draft version of WebSockets with a prefixed API
• Added support for EventSource / server-sent events
• Added support for window.matchMedia
• Added a plugins check link to the Plugins pane of the Add-ons Manager
• Added support for the element, touch events and Server-Sent Events

v2.2 [07-13-11]

SeaMonkey 2.2 contains the following major changes relative to SeaMonkey 2.1:

• Windows: Bundled extensions/add-ons are no longer optional in SeaMonkey's installer.
• Archive options can now be changed from the Copies & Folders Account Settings pane.

Mozilla platform changes

• CSS Animations are now supported.
• Improved canvas, JavaScript, memory, and networking performance.
• Improved standards support for HTML5, XHR, MathML, SMIL, and canvas.
• Improved spell checking for some locales.
• WebGL content can no longer load cross-domain textures.
• Background tabs have setTimeout and setInterval clamped to 1000ms to improve performance.

v2.1 [06-18-11]

SeaMonkey 2.1 contains the following major changes relative to SeaMonkey 2.0.14:

• Sync (f.k.a. Weave) is now included directly in SeaMonkey. Sync allows you to keep your browsing history, passwords, bookmarks, preferences and tabs in sync across different devices (computers) in a secure way.
• SeaMonkey windows can now be themed with Personas (lightweight themes).
• The bookmarks system has been reworked to use the Places framework shared with Firefox (already used for history data in SeaMonkey 2.0), including a new Bookmark Manager and fast bookmarking button in the location bar.
• Find in Page now works with a toolbar instead of a modal window.
• OpenSearch plugins are now supported and the default for web search.
• An optional search bar (including suggestions if the search engine supports it) is available in browser toolbar customization, and an engine manager for OpenSearch is available.
• More toolbar widgets are now customizable.
• The new Add-ons Manager opens directly in the browser now and has received a major facelift.
• The new Data Manager now unifies cookie, permission, password, and form data management.
• Flash cookies (LSOs) will now be removed when using Clear Private Data / Cookies (requires Flash Player 10.3 or better).
• Plugin crashes do not take down the whole application anymore since plugins run in their own processes now.
• Plugins now work in feeds shown in MailNews windows.
• The feed preview UI and the Helper Applications preferences can now detect the system's default feed reader and use it.
• Page zoom is being remembered on a site-specific basis now.
• The browser tab bar is now scrollable to cope with tab overflow. This includes an "All Tabs" navigation button to quickly list all open tabs.
• You can now drag and drop downloads, e.g. from the Download Manager to the desktop.
• SeaMonkey now shows "doorhangers" for notifications like remembering log-in passwords or after installing an extension.
• The new DoNotTrack HTTP header is supported (configurable in Preferences).
• A page with Troubleshooting Information (about:support) and the option to restart in Safe Mode are now available from the Help menu.
• Loading the URL about:memory now shows how much memory is used by different parts of SeaMonkey.
• SeaMonkey should now support more websites that previously appeared to only work with Firefox (configurable in Preferences).
• Built-in extensions (ChatZilla, JavaScript Debugger and DOM Inspector) are now installed into the profile.
• News messages can now be deleted from local storage.
• Cascaded Session Restore improves restoring large browsing sessions.
• SeaMonkey now uses Omnijar which results in fewer installed files, less fragmentation and better startup time.

Platform-specific changes

• Mac OS X 10.4 "Tiger" and PPC support was dropped, 64-bit support for 10.6 "Snow Leopard" was added.
• On Linux, desktop notifications (e.g. mail alerts, finished downloads) show up in the native environment.
• Windows 7 Jump Lists support was added.
• Download progress is now shown in the Windows 7 taskbar.

Mozilla platform changes

• Better performance on startup and shutdown, and memory usage improvements.
• Protection from out-of-date plugins has been added.
• Text areas in web forms are now resizable.
• CSS :visited selectors have been changed to block ways that websites can quickly check a user's browsing history.
• The WOFF format for downloadable website fonts is now supported.
• SMIL animation in SVG is now supported.
• New CSS attributes such as gradients, background sizing, and pointer events have been implemented.
• A new HTML5 parser is used for all HTML documents.
• New DOM and HTML5 features including the Drag & Drop API and the File API are now supported.
• JS-ctypes support has been improved, allowing in-application JavaScript code to access native system libraries.
• HTML5 video can now be viewed full screen and supports both the WebM format and the "buffered" property.
• Web developers can animate content using CSS Transitions.
• The W3C Indexed Database API is now available to websites.
• JavaScript is faster than ever with the new JägerMonkey engine.
• Support for WebGL, Direct2D and Direct3D acceleration on Windows has been added (see about:support for support and Preferences for configuration).
• The HSTS security protocol and the proposed Audio Data API are available.
• OpenType support has been improved.
• HTML5 Forms API support has been added.

v2.0.14 [04-30-11]

SeaMonkey 2.0.14 contains the following noteworthy changes relative to SeaMonkey 2.0.13:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.13 [03-24-11]

SeaMonkey 2.0.13 contains the following noteworthy changes relative to SeaMonkey 2.0.12:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.12 [03-03-11]

SeaMonkey 2.0.12 contains the following noteworthy changes relative to SeaMonkey 2.0.11:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.11 [12-10-10]

SeaMonkey 2.0.11 contains the following noteworthy changes relative to SeaMonkey 2.0.10:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.10 [10-29-10]

SeaMonkey 2.0.10 contains the following noteworthy changes relative to SeaMonkey 2.0.9:

• A Security fix for an exploited vulnerability

v2.0.9 [10-22-10]

SeaMonkey 2.0.9 contains the following noteworthy changes relative to SeaMonkey 2.0.8:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.8 [09-16-10]

SeaMonkey 2.0.8 contains the following noteworthy changes relative to SeaMonkey 2.0.7:

• Fixes for a startup crash seen by some people after a 2.0.7 update
• Font faces in HTML signatures are allowed again

v2.0.7 [09-08-10]

SeaMonkey 2.0.7 contains the following noteworthy changes relative to SeaMonkey 2.0.6:

• Security fixes
• Message-ID searches on Google Groups work again
• Add-ons preferences button for Lightning should work now

v2.0.6 [07-22-10]

SeaMonkey 2.0.6 contains the following noteworthy changes relative to SeaMonkey 2.0.5:

• Security fixes
• Unprivileged users are notified of security updates again
• Password import from SeaMonkey 1.x now works in some cases where it failed before
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

v2.0.5 [07-01-10]

SeaMonkey 2.0.5 contains the following noteworthy changes relative to SeaMonkey 2.0.4:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
• New available languages: British English and Simplified Chinese
• Some updates to the in-product help content

v2.0.4 [04-01-10]

SeaMonkey 2.0.4 contains the following noteworthy changes relative to SeaMonkey 2.0.3:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
• ChatZilla localization packs work again (Bug 540842)
• FTP file upload was fixed (Bug 467524)
• The internal help content was updated some more

v2.0.3 [02-19-10]

SeaMonkey 2.0.3 contains the following noteworthy changes relative to SeaMonkey 2.0.2:

• Security fixes
• Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
• New supported language version: Japanese
• A problem with Outgoing Server (SMTP) connections after migration from older versions was fixed by disabling stricter security checking and reverting to previous behavior for the moment. (Bug 522633)
• Cutting and copying text should not be blocked by certain other Windows applications any more. (Bug 525601)
• Profile migration from 1.x should succeed in more cases on Windows now. (Bug 537525)
• Language packs from 2.0.3 now continue to work with later SeaMonkey 2.0.x versions. (Bug 544096)
• Language packs for all locales now don't include dictionaries to avoid licensing conflicts. Dictionaries should be installed from the dictionary add-ons page instead. (Bug 537481)
• The internal security module has been updated and new certificate authorities were included. (Bug 528277)
• Opening files from the Mac desktop or Finder should now work even when SeaMonkey is already running. (Bug 521699)

v2.0.2 [01-13-10]

SeaMonkey 2.0.2 contains the following noteworthy changes relative to SeaMonkey 2.0.1:

• A problem with freezes entering addresses in email compose is now fixed, but OE Contacts are not used for autocompleting addresses right now. (Bug 535528)
• A problem with NTLM authentication was fixed.

v2.0.1 [12-17-09]

SeaMonkey 2.0.1 contains the following noteworthy changes relative to SeaMonkey 2.0:

• Security fixes
• Fixes for a number of non-security-relevant crashes
• New supported language version: Italian
• Password manager now continues to work after clearing private data (Bug 521263).
• The needed parts for supporting the Firebug Add-on (1.5b4 or later) are in place now (Bug 525638).
• Email count on the Mac OS X dock icon should now be correct (Bug 509163).
• Multiple smaller fixes in various parts of the platform and the SeaMonkey application.

v2.0 [10-28-09]

SeaMonkey 2.0 contains the following major changes relative to SeaMonkey 1.1.18:

• SeaMonkey uses the same internal platform as Firefox 3.5.4 now. Due to this change SeaMonkey is now much closer to Firefox as far as user profiles, add-ons and functionality of user interface elements are concerned.
• The default location of user profiles has changed. Legacy profiles, e.g. from SeaMonkey 1.x, or even Thunderbird profiles, can be migrated automatically, excluding third-party add-ons (extensions and themes). The old profile will not be touched (instead, copies are made).
• The new Add-on Manager allows to install, update, disable and remove extensions (add-ons), themes and plugins using the same mechanisms Firefox uses. This should ease extension management and development considerably.
• Session restore (crash recovery) has been added. Now, when SeaMonkey crashes, all your browser windows and tabs will be restored automatically or on request (including data entered in web forms!). In addition, users can select to always restore the browser windows and tabs from their last open session when starting SeaMonkey.
• Reopening closed browser windows (Undo Close Window) is now possible.
• History is now stored in a better database solution, so that it can easily keep more information, and the location bar determines which addresses to autocomplete and/or show in the drop down menu with a smarter algorithm based on what you type, searching in both URL and title of visited pages by default.
• Toolbars in the browser, main MailNews and message compose windows are now fully customizable, including icon size and whether to display icons and/or text for every major toolbar, all available via their context menus.
• The MailNews component now includes support for reading RSS and Atom feeds. The browser detects feeds offered by web pages, can preview them and offers different ways to subscribe to them.
• New IMAP accounts will now keep local offline copies by default, as a part of a number of speed improvements when working with IMAP. Synchronization can be disabled per account or for individual folders, and limited to the most recent messages in the Synchronization & Storage settings.
• Tabbed Mail enables accounts, folders and even single messages to be opened in tabs inside the Mail & Newsgroups window. This feature also enables the Lightning extension to be installed into SeaMonkey for calendering functionality.
• Password Manager was switched to an improved version, allowing easier searching, and notification bars replacing modal dialogs for remembering logins.
• Download Manager has been completely reworked, including support for cross-session resumable downloads.
• A new form manager replaces all previous web form management, and automatically keeps a record of what you type into forms and presents you these options in a drop-down list when you come back.
• Cookie Manager has been improved and now allows searching for cookies by site and cookie name.
• Gecko, the rendering engine used in SeaMonkey, has seen many improvements since the version used in the last stable release. Changes range from a better graphics backend (Cairo/Thebes) to improved support for fonts, CSS, DOM and JavaScript. SeaMonkey 2.0 passes the Acid2 test and most of Acid3 and includes all the HTML5 and other new web-facing features also included in Firefox 3.5, such as audio/video elements, downloadable fonts and JIT-compiled JavaScript.
• Most of the icons in the default theme have been exchanged for newer images that fit better with the look of modern desktop environments.
• The default theme on Mac OS X was completely renewed to better fit with the look of Leopard and Snow Leopard.
• For extension developers, SMILE is introduced, making interfaces known from FUEL and STEEL also available in SeaMonkey.
• Support for Windows 95, 98, Me and NT 4 was dropped. GTK 2.10 or higher is now required on Linux/UNIX. Support for Mac OS X 10.3 ("Panther") and 10.2 ("Jaguar") was also dropped.

v1.1.18 [09-05-09]

New Features and Fixes General

• Security fixes

New Issues These are items that have been added to the Known Issues page since the last release (SeaMonkey 1.1.17), although the bugs themselves may have existed previously. General

• Starting from SeaMonkey 1.1.18, the same library for secure connections as as in Firefox 3 is used, which does stricter checking for wildcard certificates. A wildcard can only match one domain level now, e.g. a *.mozilla.org certififcate does match addons.mozilla.org but not en-US.addons.mozilla.org now.
  This is not a bug, SeaMonkey is actually following the specification correctly now and was not doing it correctly before.