Search Support

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

Thunderbird not starting

more options

Getting the following error message while trying to open Thunderbird

Error: Platform version '91.7.0' is not compatible with minVersion >=91.8.0 maxVersion <=91.8.0

Getting the following error message while trying to open Thunderbird Error: Platform version '91.7.0' is not compatible with minVersion >=91.8.0 maxVersion <=91.8.0

All Replies (1)

more options

Hello there Qatar Munir. We have read your message. We try to help you.



Your Thunderbird software is not starting. Try to shut down Thunderbird. Delete the program folder on your pc. C:\Program Files (x86)\Mozilla

Get a fresh reinstall from https://www.thunderbird.net/en-US/thunderbird/releases/


You will not lose your data keep your login name and password. But for the safety of your data try to make a backup from your pc or files.

https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile


Send me a message after trying.


Greetings Firefox volunteer.

Diubah oleh Display name. день сумо