Comodo Icedragon 42.0.0.25 -

: The core value proposition was the integration of proprietary Comodo security tools directly into the browser. This included SiteInspector , which scans web pages for malware before you visit them, and the use of Comodo Secure DNS to improve speed and safety by filtering out malicious domains at the network level.

Comodo had to reapply its patches—hundreds of lines of low-level hooks—to each new Firefox release. By late 2016, Icedragon lagged Firefox (Firefox 51 vs Icedragon 48). Security fixes from Mozilla were not being merged quickly. comodo icedragon 42.0.0.25

The browser felt weightless. Leveraging its unique Firefox-based core optimized by Comodo’s security DNA, the IceDragon 42.0.0.25 moved with a terrifying efficiency. Pages didn't "load"; they simply the moment Eli hit Enter. : The core value proposition was the integration

The answer, apparently, was: because users won’t wait an extra half-second to find out. By late 2016, Icedragon lagged Firefox (Firefox 51