We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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 cerrado y archivado. Haz una nueva pregunta si necesitas ayuda.

Incompatible Thunderbird update

  • 1 respuesta
  • 1 tiene este problema
  • 1 visita
  • Última respuesta de Matt

21214dg
21214dg
more options

A recent Thunderbird update is NOT allowing Thunderbird to open. I receive the following pop up message when trying to open the program: 

"XULRunner
    Error:  Platform version '78.9.0' is not compatible with
                                minVersion >= 78.10.1
                                maxVersion <= 78.10.1"

All my emails are in Thunderbird prior to this update. How do I uninstall this latest update so I can open Thunderbird and access all of my emails that were there? This automatic update was done when turning on my PC after not using it during the past 2-3 days.

A recent Thunderbird update is NOT allowing Thunderbird to open. I receive the following pop up message when trying to open the program: "XULRunner Error: Platform version '78.9.0' is not compatible with minVersion >= 78.10.1 maxVersion <= 78.10.1" All my emails are in Thunderbird prior to this update. How do I uninstall this latest update so I can open Thunderbird and access all of my emails that were there? This automatic update was done when turning on my PC after not using it during the past 2-3 days.

Todas las respuestas (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

answered here https://support.mozilla.org/en-US/questions/1335747