K-Meleon is a free, open source browser released under the GNU General Public License. It is based on the Gecko layout engine developed by Mozilla, the same layout engine used by Firefox browser. It is one of the best browsers (small, fast and customizable) designed to work on older Microsoft Windows operating systems and also a gre…

Windows Open-source Version 75.1 Latest update: September 20, 2015

Pale Moon

Pale Moon is a free web browser based on the well-known Mozilla Firefox. Some of his strong points: available in both 32-bit and 64-bit versions, well optimized - in several, independent tests it performed faster than Firefox, most updates applied are related to security and reliability (most "unwanted" updates are not implemented),…

Windows Freeware Version 26.1.1 Latest update: February 24, 2016


Waterfox is a free, 64-bit open source browser based on Mozilla Firefox. It aims to be fast and focus on power users. No plugin whitelist and no data sent back to Mozilla or Waterfox project. There is no 32-bit version, only 64-bit available as a setup and portable version

Cross-platform Open-source Version 46.0.1 Latest update: May 20, 2016