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Comodo Free Firewall

Keep personal data safe while browsing the Internet.

Secure your online connections by setting up a firewall. Filter out unwanted data requests and prevent suspicious processes from accessing personal data. Block untrustworthy email attachments, file downloads, and unsafe web pages. Prevent malware installation.


  • Low use of system resources
  • Regular database updates
  • Thorough system scanning


  • May accidentally label normal sites as malicious
  • Developed by Comodo Group, Inc.
  • File name: cmd_fw_installer.exe (5.3 MB)
  • Latest version:
  • License: Free
  • Updated: July 14, 2021
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