In certain versions of Windows 10, you may receive a notification with a warning about ''Microsoft-verified apps'' when you run the Firefox installer. ;[[Image:use a Microsoft verified app|width=600]] '''Any copy of Firefox downloaded from ''www.mozilla.<!-- -->org'' is safe to install''', so choose '''Install anyway'''. {note} '''Note:''' *You can also [[Download Firefox on Windows from the Microsoft Store|download and install Firefox from the Microsoft Store]]. *'''Using Windows 10 in S mode?''' See [[Windows 10 S won't let me install Firefox]]. {/note} If you do not see the option to ''Install anyway'', follow the steps below to change your system settings. #Open the Windows 10 Start [[Image:Windows10StartButton]] menu and select [[Image:Win10Settings-GearIcon]]{menu Settings}. #Click on '''Apps''' in the ''Windows Settings'' menu. #;[[Image:w10 Apps settings|width=600]] #In the ''Apps & features'' section, go to '''Choose where to get apps''', click on the dropdown menu below and select one of the options that allows you to install from '''Anywhere'''. #;[[Image:w10 Choose where to get apps|width=600]] #Run the Firefox Installer again. Your Windows may now allow it to install Firefox. = Related content = * [[Why do I get a harmful download message when downloading Firefox on Windows?]] * [[How to install Firefox on Windows]]

In certain versions of Windows 10, you may receive a notification with a warning about Microsoft-verified apps when you run the Firefox installer.

Any copy of Firefox downloaded from www.mozilla.org is safe to install, so choose Install anyway.

If you do not see the option to Install anyway, follow the steps below to change your system settings.

1. Open the Windows 10 Start menu and select Settings.
2. Click on Apps in the Windows Settings menu.

   

3. In the Apps & features section, go to Choose where to get apps, click on the dropdown menu below and select one of the options that allows you to install from Anywhere.

   

4. Run the Firefox Installer again. Your Windows may now allow it to install Firefox.

Related content

• Why do I get a harmful download message when downloading Firefox on Windows?
• How to install Firefox on Windows