Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Etsi tuesta

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.

Lue lisää
Solved Arkistoitu

Thunderbird won't start up, gives compatibility error message

Matt replied
silverhand60

When I try to start up Thunderbird, I get an error message that says:

Error: Platform version '38.4.0' is not compatible with minVersion >= 38.3.0 maxVersion <=38.3.0

The file version listed is 38.3.0.5749 and the product version is 38.3.0; last updated on 10/5, apparently.

When I try to start up Thunderbird, I get an error message that says: Error: Platform version '38.4.0' is not compatible with minVersion >= 38.3.0 maxVersion <=38.3.0 The file version listed is 38.3.0.5749 and the product version is 38.3.0; last updated on 10/5, apparently.
Lue tämä vastaus kontekstissaan

Valittu ratkaisu

just reinstall, your mail and setting will be unaffected and whatever file is corrupt will hopefully be replaced.

Kaikki vastaukset (3)

It looks like the error is from an add-on not compatible with Thunderbird 38.4.0. Try to start Thunderbird in safe mode. https://support.mozilla.org/en-US/kb/safe-mode-thunderbird

Unfortunately, Thunderbird does not launch in safe mode either - I get the same result. I try to open it as your linked article says, by holding the shift key down.

Valittu ratkaisu

just reinstall, your mail and setting will be unaffected and whatever file is corrupt will hopefully be replaced.