Comodo sells several security products, so adding 'free download' to this search is a reasonable way to make sure you land on the no-cost Firewall product rather than their paid Internet Security bundle. The good news is Comodo Firewall installs on its own, without forcing you to also take their antivirus, and it remains free for personal Windows use. This page links directly to that standalone installer so you can skip the extras during setup.
Standalone Firewall vs. the Full Comodo Security Suite
Comodo Firewall can be installed separately from Comodo Antivirus, which matters if you already run a different antivirus and just want an additional firewall layer. It includes host intrusion prevention (HIPS) and a sandbox that runs unrecognized programs in isolation before they can touch your system. The whole package stays free for personal use on Windows, with no time limit attached.
Who ends up using Comodo Firewall
Comodo Firewall appeals to users who already run a separate antivirus and want a dedicated, more configurable firewall layer on top.
- Users pairing it with a different antivirus for an extra firewall layer
- Privacy-conscious users wanting to sandbox unrecognized programs before running them
- Home users wanting more granular application-level rules than Windows Firewall
Before you install
A couple of things worth knowing about Comodo Firewall before you request the link: it only ships for Windows, so double-check that's the machine you're installing it on before you request the link. And on pricing, Comodo Firewall is free to use outright — there's no paid tier hiding behind it, so what you install is the whole app. It's developed and maintained by Comodo Security Solutions.
System requirements
- WindowsWindows 10 or 11 (64-bit); older 7/8.1 builds usually still run but no longer get official support
Heavier workloads (large files, high-res media, big projects) will naturally want more RAM and a faster CPU/GPU than the bare minimum.
Quick steps
- Download the Comodo Firewall installer
- During setup, decline any bundled Comodo antivirus or browser offers you don't want
- Restart when prompted and check the firewall is running from the system tray icon
Comodo Firewall: the honest trade-offs
- Free for personal use with no time limit or feature paywall
- Includes HIPS and an auto-sandbox for isolating unknown executables
- Can be installed standalone without pulling in Comodo's antivirus
- Setup wizard defaults toward bundled Comodo browser and toolbar offers
- Frequent permission popups can overwhelm users unfamiliar with firewall rules
This is Comodo's genuine standalone Firewall installer, sourced from their official release channel without extra bundling added.
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Keeping Comodo Firewall up to date
Comodo Firewall typically checks for updates from inside the app, or you can just re-download the current installer from the official source periodically — reinstalling over the top keeps your settings. Sticking to the developer's own distribution channel — which is what this page links to — means you're never stuck on an old build with unpatched bugs just because a mirror site stopped updating its copy.
Features, install steps, alternatives and more detail live on the main Comodo Firewall page.
Frequently asked questions
Will Comodo Firewall conflict with my existing antivirus?
It's designed to run alongside most third-party antivirus products, though you should avoid running two full firewalls at once to prevent conflicts.
Does installing Comodo Firewall force me to also install their antivirus?
No, the setup wizard lets you deselect the bundled antivirus and browser components and install just the firewall.
