Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Buscar en Ayuda

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Este tema ha sido archivado. Haz una nueva pregunta si necesitas ayuda.

Can't open Firefox - error re "platform version '120.0.1'

  • 3 respuestas
  • 25 tienen este problema
  • 1173 visitas
  • Última respuesta de Chris

Julie
Julie
more options

Hello,

Clicking to open Firefox gives me the following error message:

Error. Platform version '120.0.1' is not compatible with miniVersion >= 120.0 maxVersion <= 120.0

Can't open firefox! I'm running Windows 11 version 10.0.22631 Build 22631

Thanks! Julie

Hello, Clicking to open Firefox gives me the following error message: Error. Platform version '120.0.1' is not compatible with miniVersion >= 120.0 maxVersion <= 120.0 Can't open firefox! I'm running Windows 11 version 10.0.22631 Build 22631 Thanks! Julie

Solución elegida

Hello. It seems that you have a mixture of old and new files. I suggest that you remove Firefox and reinstall it. You may want to consider a 'custom' installation.

https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer https://support.mozilla.org/en-US/kb/custom-installation-firefox-on-windows

Leer esta respuesta en su contexto 👍 3

Todas las respuestas (3)

Terry
Terry
more options

Solución elegida

Hello. It seems that you have a mixture of old and new files. I suggest that you remove Firefox and reinstall it. You may want to consider a 'custom' installation.

https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer https://support.mozilla.org/en-US/kb/custom-installation-firefox-on-windows

Julie
Julie Autor de la pregunta
more options

Thank you! Odd that it suddenly happened.

Appreciate your suggestion.

Chris
Chris
more options

Terry schrieb
Hello. It seems that you have a mixture of old and new files. I suggest that you remove Firefox and reinstall it. You may want to consider a 'custom' installation. https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer https://support.mozilla.org/en-US/kb/custom-installation-firefox-on-windows

I had the same problem. Reinstalling was the solution. Thank You!!!