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SeaMonkey for Mac

SeaMonkey 2.0.3

  -  21.61 MB  -  Open Source

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 2.0.3.


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!

  • SeaMonkey 2.0.3 Screenshots

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

    SeaMonkey 2.0.3 Screenshot 1
  • SeaMonkey 2.0.3 Screenshot 2
  • SeaMonkey 2.0.3 Screenshot 3
  • SeaMonkey 2.0.3 Screenshot 4
  • SeaMonkey 2.0.3 Screenshot 5

What's new in this version:

- 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)