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SeaMonkey 2.53.19

  -  51.47 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 2.53.19.


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 2.53.19

  • SeaMonkey 2.53.19 Screenshots

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    SeaMonkey 2.53.19 Screenshot 1
  • SeaMonkey 2.53.19 Screenshot 2
  • SeaMonkey 2.53.19 Screenshot 3
  • SeaMonkey 2.53.19 Screenshot 4
  • SeaMonkey 2.53.19 Screenshot 5

What's new in this version:

- Cancel button in SeaMonkey bookmarking star ui not working
- Remove OfflineAppCacheHelper.jsm copy from SeaMonkey and use the one in toolkit
- Remove obsolete registerFactoryLocation calls from cZ
- Remove needless implements='nsIDOMEventListener' and QI
- Replace use of nsIStandardURL::Init
- Switch SeaMonkey website from hg.mozilla.org to heptapod.
- Allow view-image to open a data: URI by setting a flag on the loadinfo
- Save-link-as feature should use the loading principal and context menu using nsIContentPolicy.TYPE_SAVE_AS_DOWNLOAD
- Use punycode in SeaMonkey JS
- Font lists in preferences are no longer grouped by font type, port asynchronous handling like
- SeaMonkey broken tab after undo closed tab with invalid protocol
- SeaMonkey session restore is missing the checkboxes in the Classic theme
- Implement about:credits on seamonkey-project.org website

The following bugs were fixed in our branch of the Gecko source code only:
- Fix for the 0.0.0.0 day vulnerability oligo summary
- Link in update notification does not open Browser
- Update ReadExtensionPrefs in Preferences.cpp
- Add about:seamonkey page to SeaMonkey

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