Icon of program: SeaMonkey

Download SeaMonkey for Mac

  • Free
  • 3.6
    36
  • 19.3K
  • V2.53.21

SeaMonkey free download. Always available from the Softonic serversSeaMonkey free download. Always available from trusted servers.

  • Free & fast downloadFree & fast downloader ()
  • Always available
  • Tested virus-free
Free Download for Mac

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Alternative SeaMonkey download from external server (availability not guaranteed)

From Softonic servers

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Safe Downloader

The Safe Downloader downloads the app quickly and securely via Softonic´s high-speed server, so that a trustworthy origin is ensured. In addition to virus scans, our editors manually check each download for you.

Advantages of the Safe Downloader:

  • Malware protection informs you if your download has installed additional unwanted software.
  • Discover additional software: Test new software that are waiting to be discovered in the downloader.
  • With us you have the choice to accept or skip additional software installs.

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is SeaMonkey safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Saturday, November 22, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
2.53.21.dmg
SHA256
3e231633e994849e9a0de51a5b8c25a1d691a1f65bf4fc53cbbdc76142a086d0
SHA1
373aa29925a75bf5f3374db9c83c54e0d0aad6bd

Softonic security commitment

SeaMonkey has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center