Please note that you will end up with two copies of Firefox installed on your system.
#Firefox download for windows 10 64 bit install
Just make sure you download a 32-bit copy of Firefox that time as you need to install it.
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You may downgrade to 32-bit at any time in the future by following the instructions again. You may run the newly installed 64-bit version of Firefox and it will pick up the default user profile automatically. To upgrade, simply run the installer and follow the instructions. Next step is to download the 64-bit version of Firefox that you plan on using. This enables you to go back should things go wrong during the process. I suggest you back up profile data using MozBackup or Febe, or a comparable solution. Good news is that the upgrading is as easy as installing Firefox anew on the operating system. Mozilla started to migrate eligible 32-bit copies of Firefox on Windows to 64-bit copies automatically when Firefox 56 was released in mid 2017. This is not the case if you just run a tab or two in the browser, but if you run dozens or hundreds, lots of extensions, or run memory hungry apps, then you will benefit from the extra memory surely. If you have more than 4 GiB of physical memory installed, Firefox may benefit from the extra RAM especially if you throw lots of tabs at it.
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The main benefit of running a 64-bit application is that it is not limited to using 4 GiB of memory.
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If you depend on other plugins, say Java or Unity, you could not upgrade in the past this changed with Mozilla's decision to end support for NPAPI plugins in the Firefox browser.įirefox users could run 32-bit and 64-bit versions of Firefox side by side on the system to overcome the limitation in the past but since NPAPI support is not really an option anymore, plugin support is no longer part of the equation when it comes to selecting between 32-bit and 64-bit versions of the Firefox browser. 64-bit versions were limited when it came to support for plugins - only Flash and Silverlight are supported.
#Firefox download for windows 10 64 bit how to
Before we take a look at how to upgrade from a 32-bit version of Firefox to a 64-bit version, it is important to understand why upgrading makes sense (or not).įirefox 32-bit and 64-bit offer the same browsing functionality for the most part.