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SeaMonkey 2.49.3

  -  75.17 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of SeaMonkey 2.49.3.


For those interested in downloading the most recent release of SeaMonkey for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download SeaMonkey 2.49.3

  • SeaMonkey 2.49.3 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    SeaMonkey 2.49.3 Screenshot 1
  • SeaMonkey 2.49.3 Screenshot 2
  • SeaMonkey 2.49.3 Screenshot 3
  • SeaMonkey 2.49.3 Screenshot 4
  • SeaMonkey 2.49.3 Screenshot 5

What's new in this version:

- You were unable to add or edit properties for images and links in the 2.49.1 Composer. The problem, tracked in bug 1417819, has been fixed. We are sorry for the inconvenience it caused.
- SeaMonkey now uses gtk3 on Linux. If you experience a problem because of this please file a bug and link it to Switch Linux builds to GTK3 with SeaMonkey 2.49. Pleae try another OS theme first. Some of them are buggy and cause problems with SeaMonkey, Thunderbird and Firefox.
- With some Linux themes, the menulist- and history-dropmarker didn't show. It was actually there but only 1 pixel wide. The problem, tracked in bug 1331208, has been fixed. As a result the dropmarker in the location bar is now also shown a little wider under Windows.
- Scrollbars didn't show the buttons under Linux. The problem, tracked in bug 1269145, has been fixed. We will try to improve the visual experience in a follow-up version.
- WebRTC has been disabled by default. It needs an add-on to enable it per site. See the webrtc-permissions-ui-toggle add-on.
- The active title bar was not visually emphasized under Linux or using the Windows XP/Vista/7 Classic theme. We opted to show it with a striped color bar in bug 1398973.
- For security, parts of bug 1035091 were ported in bug 1411708. This might cause problems with add-ons like Stylish which use moz-document. Set the preference "layout.css.moz-document.content.enabled" to "true" to overcome this but be aware that this disables the added security fix.
- You can remove the tool- and menubar grippies by setting the preference "browser.toolbars.grippyhidden" to "true".

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