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Want to switch to the 64-bit version of Firefox? Here's how...

[[Template:WindowsOnly]] The 64-bit version of Firefox can provide better performance than the 32-bit version. Want to switch to the 64-bit version of Firefox? Just install the 64-bit version and uninstall the 32-bit version. Your [[Profiles - Where Firefox stores your bookmarks, passwords and other user data|Firefox user data]] (passwords, bookmarks, settings, [[Find and install add-ons to add features to Firefox| extensions and themes]], etc.) will not be removed. {warning} * 64-bit Firefox requires a 64-bit version of Windows 7 or higher. To find out if you are running a 64-bit version of Windows, visit [https://support.microsoft.com/en-us/kb/827218 this Microsoft article]. * 64-bit Firefox only supports the [[Flash Plugin - Keep it up to date and troubleshoot problems|Adobe Flash]] and [[Use the Silverlight plugin to play audio and video|Microsoft Silverlight]] NPAPI plugins. See [[Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work?|this article]] about changes in Firefox plugin support. {/warning} <!--Localizers: replace English%20(US) with your language--> # Go to [https://www.mozilla.org/firefox/all/?q=English%20(US) this Mozilla Firefox download page] and click on the '''Windows 64-bit''' download link. #;[[Image:DownloadWin64-bit]] # Run the setup file you've just downloaded and follow the prompts to install the 64-bit version of Firefox. # Close Firefox. # Now it's time to remove the 32-bit version. Open the Windows {menu Start} menu and click on {for not win7}{menu Settings}{/for}{for win7}{menu Control Panel}{/for}. Open the {for not win7}{menu System}{/for}{for win7}{menu Programs}{/for} panel, then select the {for not win7}{menu Apps & features} tab{/for}{for win7}{menu Programs and Features} panel{/for}. # Scroll down the list of {for not win7}apps{/for}{for win7}programs{/for} until you find the '''Mozilla Firefox''' item that contains '''x86''' in the name. Select it, and click {button Uninstall}. # Follow the prompts in the Uninstall Wizard to complete the removal of the 32-bit version.