Home > Firefox, Internet, Software > 64-bit Firefox – Namoroka or Nightly builds..

64-bit Firefox – Namoroka or Nightly builds..

Running Mozilla x64 / 64 bit Web Browser

Running a 64 bit version of windows and want a native 64 bit version of Firefox?

Well, the people behind Firefox – Mozilla – have decided to only release a 32 bit version of Firefox. You can read their own official articles – Firefox on Windows 7 and lack of support for 64bit to get a heads-up.

Now, I run Windows 7 64 bit, (or x64, the term is interchangeable,) on an Intel i7. The CPU is designed to shift 64 bit numbers and so I want it to reach it’s full potential by running 64 bit software.

Mozilla x86-64

Windows 7 comes with IE in 32 and 64 bit versions, and although officially Firefox hasn’t got a 64 bit version, there’s an unofficial project to build popular Mozilla apps for x64 systems, including the popular web browser, Firefox for 32bit systems.

Firefox 3.6 was codenamed Namoroka.

Namoroka running as 64 bit process

Namoroka running native 64bit

If you install it, remember it’s not an official project and not officially supported, but it’s compiled from the same source-code.

You should install the x64 version of Java if you haven’t already, and be aware that if you use AVG the searchshield and surfshield plugin will not recognise these builds and the plugins will not be available.

64 bit Firefox 4 beta 12 – a Minefield..

The people over at Mozilla-x86-64 have compiled some of the latest Firefox versions into 64 bit windows versions, however at the time of writing, the most up-to-date version you can download is the custom Firefox 4 beta 12, not the fully patched release version. Visit http://wiki.mozilla-x86-64.com/Firefox:Download

This version is known as Minefield, and is important to understand they are supplying pre-release builds. Visit https://www.mozilla.org/projects/minefield/ for more information.

It's a Minefield..


Nightly Build

Another pre-release Minefield version of Firefox is available from the official Mozilla nightly build website https://nightly.mozilla.org/ but this time it’s a future release, not an old build.

The currently available x64 Minefield build is 4.2 alpha 1 – alpha releases are often buggy, pre-release versions, but it’s these crash reports and bug fixes that give birth to the next update to Firefox. Visit https://www.mozilla.org/projects/minefield/ and get involved.

Improving Website Compatibility

For some websites that check UserAgent strings to enable features or allow access, you may need to change the UserAgent string of Namoroka or a Minefield build. There is a Firefox plugin for it available – user-agent-switcher.

At the time of writing, ALL plug-ins are 32bit, with the exception of the Java Runtime Environment – JRE; version 6 update 18 supports the 64bit Firefox, as shown below and Java Runtime 6.24 is now available.

Firefox Namoroka Plugins

Firefox Namoroka Plugins

It is a feature of Firefox 4 to support a separate plugin ‘container’ – a separate process and address space for plugins to run. This is a security feature, it also SHOULD allows 32bit plugins to run under a 64bit version of firefox..

I don’t know yet if the automatic updates feature works, as this is the first release of 3.6, or if you would need to visit the homepage to check yourself. EDIT: Version 3.6.2 is just out – let me know if it auto updated for you.

Open Source

You may not like the idea that you are reliant on individuals to compile new versions for you, but the whole open source idea created this 64bit version and excellent spin-offs like Firefox Portable.

Quick Links

No 64bit Firefox on Windows 7, yet
Get the latest Java version from FileHippo.com
Firefox 4 beta 12 pre x64 from Mozilla-x86-64
Firefox Nightly Builds from Mozilla.org
Mozilla Minefield – Get Involved
UserAgent Switcher plugin.

  1. Ahilen
    March 9, 2010 at 5:54 am

    Thanks heaps for the post!
    Been trying to find out why Adobe Flash plugin was not working with Namoroka

  2. strewth
    November 5, 2010 at 1:25 pm

    … yeah, thanks from me as I just installed x64win7 and this glitch has been making me crazy. Now I know “its not me, its them”. 🙂

  3. jim
    February 21, 2011 at 3:19 am

    No flash support is a very big failure in a web browser.

    • February 23, 2011 at 10:51 am

      That’s the fault of Adobe, as a 3rd party plug in developer.
      The release of Flash Player Square resolves the 64bit flash plug in problem, although some older flash detection scripts do not check for this properly and report flash player is not installed.

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