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Waterfox Logo June 2019.png
Screenshot of Waterfox version 55.2.2 running on Windows 10, showing the English Wikipedia
Screenshot of Waterfox version 55.2.2 running on Windows 10, showing the English Wikipedia
Developer(s)Alexandros Kontos, Adam Wood
Initial release27 March 2011; 8 years ago (2011-03-27)
Stable release(s) [±]
Desktop56.2.12 / 10 July 2019; 9 days ago (2019-07-10)[1]
Android68.0a2 / 9 June 2019; 40 days ago (2019-06-09)[2]
Repository Edit this at Wikidata
Written inC, C++, CSS, JavaScript, XUL
EngineGecko, SpiderMonkey
Operating systemWindows 7 or later, macOS, Linux, Android
Platformx64, ARM64
TypeWeb browser, mobile web browser, feed reader
LicenseMozilla Public License

Waterfox is an open-source web browser for x64 and ARM64 systems. It is intended to be speedy and ethical, and maintain support for legacy extensions dropped by Firefox, from which it is forked. There are official releases for Windows (including a portable version), macOS, Linux and Android.

Waterfox is based on Firefox and is compiled using various compilers and using Intel's Math Kernel Library, Streaming SIMD Extensions 3 and Advanced Vector Extensions.[not verified in body] Linux builds are built with Clang. Waterfox is continuing to support the long-standing XUL and XPCOM add-on capability that Firefox removed in version 57.[3][4][5][6]


The features of Waterfox currently are:[7]

  • Compiled with Clang+LLVM on Linux
  • Encrypted Media Extensions (EME) is disabled by default
  • Web Runtime is disabled (deprecated as of 2015)
  • Pocket is removed
  • Telemetry is removed
  • Data collection is removed
  • Startup profiling is removed
  • All 64-bit NPAPI plugins are allowed
  • Unsigned extensions and legacy add-ons are allowed
  • Sponsored tiles on the new tab page are removed[further explanation needed]
  • A new "Duplicate Tab" command is added
  • A locale selector is added to about:preferences > General (further improved by PandaCodex)
  • Cookie Prompt has been re-implemented. Firefox later implemented a more advanced cookie control feature as part of its tracking protection initiative.
  • Bing is used as the default search engine


Waterfox logo used until 2015
Waterfox logo used from 2015 to March 2019
Waterfox logo used from March 2019 to June 2019

Waterfox was first released on March 27, 2011, for 64-bit Windows. The Mac build was introduced on May 14, 2015, with the release of version 38.0,[8] the Linux build was introduced on December 20, 2016, with the release of version 50.0, and[9] the Android build was first introduced in version 55.2.2.[10] Version 29.0 released on July 22, 2015, had a build for iOS. And from May 12, 2015, to November 12, 2015, Waterfox had its own exclusive charity search engine called Storm.[11]

Benchmarks and usage[edit]

32-bit Firefox outperformed 64-bit Waterfox in Peacekeeper browser benchmark tests run by TechRepublic in 2012,[12] and 64-bit Waterfox slightly outperformed 32-bit Firefox in tests run by Softpedia in 2014.[13] However, in 2016 64-bit Waterfox performed worse than 64-bit Mozilla Firefox in the Kraken, SunSpider, JetStream, and Octane 2.0 benchmarks.[14] Benchmarks were once available on the developers' website but have since been removed.[15] Waterfox was presented at an event called “Pitch@Palace”[16] at St James's Palace for Prince Andrew, Duke of York.

As of November 15, 2016, Waterfox had over 6 million downloads.[17]

See also[edit]


  1. ^ Kontos, Alex (10 July 2019). "Waterfox 56.2.12 Release". waterfoxproject.org. Waterfox. Retrieved 11 July 2019.
  2. ^ "Waterfox". Google Play Store. Waterfox Ltd. Retrieved 21 June 2019.
  3. ^ "Proposal for Waterfox 56". Reddit. 2017-03-11. Retrieved 2017-05-22.
  4. ^ "Waterfox 55 Release". Waterfox. 2017-10-10. Retrieved 2017-11-20.
  5. ^ Kev Needham (2015-08-21). "The Future of Developing Firefox Add-ons". blog.mozilla.org. Retrieved 2015-09-07.
  6. ^ Villalobos, Jorge (2017-02-16). "The Road to Firefox 57 – Compatibility Milestones". blog.mozilla.org. Retrieved 2017-02-17.
  7. ^ Kontos, Alex (30 November 2017). "waterfox 54.0.1 release notes". blog.waterfoxproject.org.
  8. ^ Kontos, Alex. "Waterfox 38.0 Release". www.waterfoxproject.org. Retrieved 2017-12-15.
  9. ^ Kontos, Alex. "Waterfox 50.1.0 Release (Windows, Mac & Linux)". www.waterfoxproject.org. Retrieved 2017-02-05.
  10. ^ Kontos, Alex. "Waterfox 55 Release (Windows, Mac, Linux and Android)". www.waterfoxproject.org. Retrieved 2017-12-15.
  11. ^ Kontos, Alex. "4 Year Anniversary: Waterfox Charity and Storm Search". www.waterfoxproject.org. Retrieved 2017-12-15.
  12. ^ Nawrocki, Matthew (20 April 2012). "Review: Firefox's unofficial 64-bit variant Waterfox". TechRepublic. Archived from the original on 29 July 2013.
  13. ^ Opris, Elena (6 June 2014). "Waterfox 28 Review – A 64-Bit Version of Firefox". Softpedia.
  14. ^ Don Salva. "Web browser benchmarks: Firefox vs. Waterfox vs. Pale Moon vs. Chromium vs. Chrome". The Kaputniks. Retrieved 5 February 2017.
  15. ^ Alex Kontos. "Waterfox - Probably the fastest 64-Bit browser on the web". Archived from the original on September 3, 2014. Retrieved 5 February 2017.
  16. ^ "Pitch @ Palace Bootcamp". The Duke of York. 10 November 2014.
  17. ^ "Waterfox". waterfoxproject.org. Archived from the original on 2016-11-15. Retrieved 2017-10-15.

External links[edit]