Windows users who wanted to run a 64-bit version of Firefox in the past were limited to the Nightly Channel up until now as it was the only channel that offered 32-bit and 64-bit versions of Firefox on Windows.

All other channels, Stable, Beta and Developer Edition, were not offered as a 64-bit version for the Windows operating system.

 

The situation is different for Mac and Linux versions of Firefox as 64-bit versions for both systems have been made available for some time now by Mozilla.

 

Firefox users who wanted to run 64-bit versions of Firefox on Windows had to either use the Nightly version or switch to forks of the browser such as Pale Moon or Waterfox that are offered as 64-bit versions.

 

Mozilla added 64-bit support on Windows to the Developer Edition of Firefox recently (formerly know as Aurora).

When you open the download page on the Mozilla website you find Windows 64-bit versions listed for all localized versions on the page.

 

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