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SeaMonkey for Mac

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Download SeaMonkey 2.53.7

SeaMonkey 2.53.7

  -  49.86 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 2.53.7.


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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  • SeaMonkey 2.53.7 Screenshots

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

What's new in this version:

- Remove Flash and NPAPI support bug 1688415
- Switch packaged extensions to be global bug 1659298
- Add Insert Forms to Composer bug 1684611
- Fix an issue with copying to IMAP sent folder and some reference count leaks in mailnews bug 1689890
- Tailing to delay tracker requests and enhance performance has been enabled bug 1358060
- Fix an issue with favorite and recent folders not showing in macOS bug 1695869
- Various security and general platform fixes
- The ChatZilla source has been integrated into SeaMonkey and no longer needs to be checked out separately if you build your own release bug 1551033

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