![]() ![]() ![]() Second thing that you do is back up the Firefox profile folder. Don't worry though, Mozilla won't end support for 32-bit, but will just focus on distributing 64-bit Firefox over 32-bit in 2017 and later. If your system does not have one, you are stuck with 32-bit Firefox. Find the "system type" listing on the page, and check whether it says 32-bit or 64-bit. USe Windows-Pause to open the System Control Panel applet. Check the CPUįirst thing you do, is check if you can update Firefox to 64-bit. Once you are confident that there are not any issues, you may remove the 32-bit installation of Firefox from your system. I suggest you keep it around until you have worked with the 64-bit version for a while. Note: The 32-bit version is not uninstalled automatically. All your shortcuts, profiles, bookmarks, modifications and so on will continue to work. All that is usually required is to download the dedicated 64-bit installer from Mozilla, and run it. ![]() Good news is that it is super easy to upgrade Firefox from 32-bit to 64-bit. I explained how to upgrade from Firefox 32-bit to Firefox 64-bit here, and suggest you check out the guide for a full rundown on how to do that. The number has probably gone up til then, but it is likely still low due to Mozilla prioritizing the 32-bit installer over the 64-bit currently. That restriction is still there, but with Mozilla throwing out NPAPI plugin support soon - with the exception of Flash - that is no longer an argument if you want to stay with a recent build of the browser.Ĭhance is, that you are still running a 32-bit version of Firefox as you'd have to get out of your way to grab the 64-bit installer from the Mozilla website.īack in July 2016, only 1.7% of Firefox users on Windows used a 64-bit version of the browser. The one downside that may have kept Firefox users from switching to 64-bit was limited plugin support in the 64-bit version of the browser. The reason is simple: more RAM becomes available per process that Firefox uses, and 64-bit applications benefit from security features that 32-bit applications don't. While the 32-bit version works well, and it is the only option for systems without a 64-bit processor, it is the 64-bit version that users should consider using if their device is equipped with a 64-bit cpu. Mozilla Firefox is offered as a 32-bit and 64-bit version on Windows, with 32-bit still the default right now when it comes to downloads. ![]()
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