Comodo Icedragon 40.1.1.18 Apr 2026

It should only be used in isolated, offline, or strictly controlled legacy environments.

| Use Case | Feasibility | Risk | |----------|-------------|------| | Offline documentation viewer | Yes | None | | Internal legacy web app (local network, no internet) | Yes | Low | | Testing old CSS/JS behavior | Yes | Low | | Daily internet browsing | No | Critical | | Online banking / email | No | Extreme | Connecting IceDragon 40.1.1.18 to the modern internet exposes you to known, unpatched remote code execution vulnerabilities. 5. Technical Specs (Build Details) | Component | Version | |-----------|---------| | Rendering engine | Gecko 40.0 | | JavaScript engine | SpiderMonkey (ES6 partial) | | NPAPI plugin support | Yes (including Flash – EOL) | | WebExtensions support | No | | Process model | Single process (no electrolysis) | | Default search engine | Yahoo (with Comodo wrapper) | | OS support | Windows XP SP3 through Windows 10 (initial release) | 6. How It Compares to Other Browsers from the Same Era | Browser | Release Year | Security Status | |---------|--------------|------------------| | Comodo IceDragon 40.1.1.18 | 2016 | Unmaintained | | Firefox 40 ESR | 2015 | Unmaintained | | Chrome 50 | 2016 | Unmaintained | | Pale Moon 26 | 2016 | Partially maintained | | Waterfox 45 | 2016 | Discontinued classic line | 7. Final Verdict Comodo IceDragon 40.1.1.18 was a sincere attempt to create a hardened, privacy-first Firefox fork. For its time, the removal of telemetry, SecureDNS integration, and performance tuning were commendable. comodo icedragon 40.1.1.18

Published: Technical Analysis Product Version: Comodo IceDragon 40.1.1.18 Based on: Mozilla Firefox 40 ESR (Extended Support Release) Status: Legacy / Unmaintained (as of modern standards) 1. Overview Comodo IceDragon was a browser developed by Comodo Group, primarily known for its firewall and antivirus solutions. Unlike Comodo’s Chromium-based Dragon browser, IceDragon was built on Mozilla Firefox , targeting users who preferred the Firefox interface but wanted tighter integration with Comodo’s security ecosystem. It should only be used in isolated, offline,