Download Mozilla Firefox 3 3.6.28 For Windows [2021] Jun 2026

Firefox 3.6.28 is the lightest, but virtually non-functional for 95% of today’s web. Use it only as a file viewer or classic intranet tool .

To install: Download the .xpi file, drag it into the Firefox window, and click “Install Now.” Download Mozilla Firefox 3 3.6.28 for Windows

Mozilla stopped supporting Firefox 3.6.28 years ago. This means it no longer receives security patches. The web of today is filled with threats that did not exist or were less prevalent in 2012: Firefox 3

Released in early 2012, Firefox 3.6.28 holds a unique place in internet history. It was the final, polished iteration of the "Firefox 3.6" architecture before Mozilla moved decisively into the rapid-release era (Firefox 4, 5, etc.). This article serves as your definitive guide to understanding this specific version, locating a safe download, and running it on a modern or legacy system. This means it no longer receives security patches

Windows 2000, Windows XP, Windows Vista, and Windows 7. Processor: Intel Pentium 4 or newer (supporting SSE2). Memory: 512 MB RAM or higher. Hard Drive Space: Approximately 200 MB of free space.