De Mozilla Foundation heeft de tweede bètarelease van versie 2.1 van SeaMonkey uitgebracht. SeaMonkey is de voortzetting van de voormalige Mozilla Application Suite en bestaat uit een webbrowser en programma's om te e-mailen en nieuws te lezen. Daarnaast is er nog een eenvoudige html-editor. In tegenstelling tot de Mozilla Application Suite wordt SeaMonkey door de community onderhouden, terwijl de SeaMonkey Council het onderhoud overziet. De belangrijkste veranderingen die sinds alpha 3 zijn aangebracht kunnen hieronder worden gevonden.
Major changes relative to SeaMonkey 2.1 Alpha 3:Major changes relative to SeaMonkey 2.1 Beta 1:
- OpenSearch plugins are now supported and the default for web search.
- Data Manager now unifies cookie, permission, password, and form data management.
- Plugins now run in their own processes and don't take down the browser any more if they crash.
- The context menu of the location bar now has a "Paste and Go" option.
- The location bar now features a fast bookmarking button.
- JavaScript is faster than ever with the new JägerMonkey engine.
- Direct2D Hardware Acceleration is now on by default for Windows 7 users, hardware accelerated layers are available on all platforms with known-to-work video drivers.
- The HSTS security protocol and the proposed Audio Data API are available.
- The new Data Manager is opened instead of the previous separate management windows.
- Page zoom is being remembered on a site-specific basis now.
- WebSockets have been disabled for security reasons.
- Lightweight themes (Personas) support for the Address Book, Composer, and MailNews windows.
- Deferred Session Restore.
- The browser tab bar is now scrollable (also using the mouse wheel) to cope with tab overflow. Includes an "All Tabs" navigation button to quickly list all open tabs.
- News messages can now be deleted from local storage.
- Website search fields now feature a "Add a Keyword for this Search" context menu entry.
- In some places where previously a notification bar appeared (like remembering log-in passwords or after installing an extension), SeaMonkey now shows a "doorhanger" below the location bar.
- SeaMonkey now uses Omnijar which results in fewer installed files, less fragmentation and better startup time.
- 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.
- Mac changes: PPC support was dropped, 64-bit support for 10.6 "Snow Leopard" was added.
- The new DoNotTrack HTTP header can be configured in Preferences, Privacy & Security
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