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SeaMonkey for Mac

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Download SeaMonkey 2.25

SeaMonkey 2.25

  -  49.11 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 2.25.


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 2.25 Screenshots

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

What's new in this version:

SeaMonkey-specific changes:
- Newsgroup names can now be entered using autocompletion.
- See the changes page for a more complete overview.

Mozilla platform changes:
- The Gamepad API has been finalized and enabled (learn more).
- VP9 video decoding has been implemented.
- Support for Opus in WebM was added.
- Volume control for HTML5 audio/video has been added.
- Mac OS X Notification Center support has been added for web notifications.
- Support for spdy/2 has been removed.
- Support for multi-line flexbox in layout has been added.
- Support for the MathML 2.0 mathvariant attribute has been added.
- Background thread hang reporting has been added.
- has been implemented and enabled.
- Fixed several stability issues.

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