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   Is Firefox 32-bit or 64-bit?

   • All Firefox versions are 64-bit on macOS. Both 32-bit and 64-bit versions of Firefox can be installed on 64-bit Windows and Linux operating systems. See this blog post to learn more. Not sure whether you're running 32-bit or 64-bit Firefox? This article explains how to find out.

   How do I tell if I have the 32-bit or 64-bit Firefox? | Firefox Help

   support.mozilla.org/en-US/kb/how-do-i-tell-if-32-bit-or-64-bit

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   How do I know if Firefox is 64-bit or 32-bit?

   • Now that the 64-bit version has been officially released, it carries the same version number as the 32-bit version. So if the version numbers on your computer are the same, you can determine 32-bit vs. 64-bit from the User Agent entry in that section: 32-bit Firefox running on 64-bit Windows (8.1, can't verify 10), shows WOW64 in the User Agent.

   Where to see which Firefox version is running? (64-bit or 32-bit)

   superuser.com/questions/1023356/where-to-see-which-firefox-version-is-running-64-bit-or-32-bit

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   Do I need a 64-bit version of Firefox?

   • You must have a 64-bit version of Windows to take advantage of the new version of the browser. There are two cosmetic bugs with the 64-bit version of Firefox that have been posted for a while without resolution. The first bug addresses installing the 64-bit bit version of Firefox when you have an existing 32-bit version installed.

   Where to see which Firefox version is running? (64-bit or 32-bit)

   superuser.com/questions/1023356/where-to-see-which-firefox-version-is-running-64-bit-or-32-bit

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   Does Firefox work on Windows 8.1?

   • Firefox is no longer supported on Windows 8.1 and below. Please download Firefox ESR (Extended Support Release) to use Firefox. Users on 64-bit Windows who download Firefox can get our 64-bit version by default. That means you get a more secure version of Firefox, one that also crashes a whole lot less. How much less?

   Firefox for Windows 64-bit - Mozilla

   www.mozilla.org/en-GB/firefox/browsers/windows-64-bit/

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   How do I know if Firefox is x86 or x64?

   • The software name is listed (the version number, 43.0 in this example, may be different): 32-bit Firefox is listed as Mozilla Firefox 43.0 (x86 en-US). 64-bit Firefox is listed as Mozilla Firefox 43.0 (x64 en-US). If you have something other than the US English version, the letters after the x86 or x64 will be different.

   Where to see which Firefox version is running? (64-bit or 32-bit)

   superuser.com/questions/1023356/where-to-see-which-firefox-version-is-running-64-bit-or-32-bit

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   Does Firefox have a 64-bit nightly build?

   • Firefox has a 64-bit Nightly build, but this build is for testers and not for day-to-day use. The easy way to check is via the install directory. It's actually official as of 12/15/2015, see press release. It's downloadable from the "all" downloads page. There is a bug in the first release of the 64 bit version.

   Where to see which Firefox version is running? (64-bit or 32-bit)

   superuser.com/questions/1023356/where-to-see-which-firefox-version-is-running-64-bit-or-32-bit

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2. www.mozilla.org › firefox › browsersFirefox for Windows 64-bit - Mozilla

   www.mozilla.org › firefox › browsers

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   Users on 64-bit Windows who download Firefox can get our 64-bit version by default. That means you get a more secure version of Firefox, one that also crashes a whole lot less. How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more.

   • Windows

     Firefox for Desktop. Get the not-for-profit-backed browser...

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     Firefox for Desktop. Get the not-for-profit-backed browser...

3. support.mozilla.org › en-US › kbHow do I tell if I have the 32-bit or 64-bit Firefox ...

   support.mozilla.org › en-US › kb

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   Aug 27, 2021 · To see if the 32-bit or 64-bit version of Firefox is installed, locate Mozilla Firefox in the list of programs. The program name will be followed by the the bit version and language, in parentheses. If the program name contains x86, the 32-bit version of Firefox is installed.

4. Videos

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     Firefox x64 bit Version Installation Guide

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     Firefox 42.0, a 64bit version for Windows is Finally here!

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     Mozilla - Releases 64 Bit Version of FireFox Web Browser

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5. www.howtogeek.com › 297773 › how-to-check-if-you-areHow to Check if You Are Running a 32-bit or 64-bit Version of ...

   www.howtogeek.com › 297773 › how-to-check-if-you-are

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   • Using the About Firefox Box
   • Using the Troubleshooting Information Page
   • The Best Tech Newsletter Around

   The simplest method for finding this information is opening the About Firefox box. However, before continuing, be aware that opening the About Firefox box causes Firefox to automatically update, if there's an available update. So, if you'd rather not update Firefox right now, skip to the next section for another easy method.

   To check if Firefox is 32-bit or 64-bit using the About Firefox box, click the Firefox menu in the upper-right corner of the window and then click the Help icon at the bottom of the menu.

   On the Help pane that slides out, click the "About Firefox" option.

   If you're running a 32-bit version of Firefox, it will say "(32-bit)" next to the version number on the About Mozilla Firefox box.

   See full list on howtogeek.com

   If you don't want Firefox to automatically update right now, you can check whether Firefox is 32-bit or 64-bit on the Troubleshooting Information page. To do this, click the Firefox menu in the upper-right corner of the window and then click the Help icon at the bottom of the menu.

   On the Help pane that slides out, click the "Troubleshooting Information" option.

   The Troubleshooting Information page displays on a new tab. Look at the "User Agent" section under Application Basics. If it says "WOW64", you're running the 32-bit version of Firefox.

   If it says "Win64", you're running the 64-bit version.

   If the User Agent section on the Troubleshooting Information page doesn't say either "WOW64" or "Win64", then you're running a 32-bit version of Windows, and you cannot run a 64-bit version of Firefox.

   If you use Chrome, you can also check whether you are running a 32-bit or 64-bit version of Chrome.

   See full list on howtogeek.com

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   • Author: Lori Kaufman

6. superuser.com › questions › 1023356Where to see which Firefox version is running? (64-bit or 32-bit)

   superuser.com › questions › 1023356

   Jan 8, 2016 · How to tell if Firefox is 32-bit or 64-bit. Mozilla published the Windows 64-bit installer for Firefox to the Download page with yesterday’s release of Firefox 43.0. You must have a 64-bit version of Windows to take advantage of the new version of the browser.

7. support.mozilla.org › en-US › questionsHow do I find out whether I have a 32 or 64 bit version of ...

   support.mozilla.org › en-US › questions

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   Mar 28, 2013 · The WOW64 part shows you are using 32-bit Firefox on 64-bit Windows 8. To be more accurate on what Swarnava said, Mozilla does not make a 64-bit version for Win64 specifically. They do make 64-bit versions for Linux and Mac OSX (combined dmg download).

8. robots.net › software-and-applications › browsersHow To Tell If Firefox Is 32 Or 64 Bit - Robots.net

   robots.net › software-and-applications › browsers

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   Jan 27, 2024 · If you have a 64-bit version, it will be explicitly mentioned next to the version number. If it's a 32-bit version, it will not be specified, indicating that it's a 32-bit application. By following these simple steps, you can easily determine whether your Firefox browser is 32-bit or 64-bit.

9. support.mozilla.org › en-US › questions32-bit vs 64-bit on Windows 11 22H2? | Firefox Support Forum ...

   support.mozilla.org › en-US › questions

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   Mar 28, 2023 · We are deploying the 32-bit version of the Firefox Browser to 4 700 clients and the 64-bit version to only 8 clients; all clients on a 64-bit Windows 10 environment. We will migrate to Windows 11 22H2 this year.