O Thunderbird contém um recurso de atualização de Software que faz a verificação automática das atualizações e solicita a instalação quando necessário. Para mais informações sobre o recurso de Atualização de Software, consulte Atualize o Thunderbird.

As vezes, o atualizador falha e apresenta a seguinte mensagem de erro:

Este artigo apresenta possíveis soluções e alternativas para se obter o Thunderbird atualizado.

Outro usuário está executando o Thunderbird

If you share your computer with other users, and another user's account is still logged in with Thunderbird running, this error can occur. Make sure you're the only user logged in to the computer when updating Thunderbird. A maneira mais fácil de fazer isso é reiniciar o computador. Uma vez que o computador seja reiniciado, execute o Thunderbird, clique no menu Help, e selecione Check for Updates....

Finalize todos os processos do Thunderbird e reinicie a Aplicação

Finalize todos e quaisquer processos do Thunderbird que possam ainda estar ativos, seja de forma manual ou reiniciando o seu computador.

Uma vez que todas as instâncias do Thunderbird foram finalizadas ou após o computador ter sido iniciado novamente, execute o Thunderbird para verificar se o atualizador esteja funcionando agora.

Ending Thunderbird processes on Windows

You can manually end the Thunderbird process using Windows Task Manager.

1. Right-click on an empty spot in the Windows task bar and select Task Manager (or press Ctrl+Shift+Esc).
2. Select the Processes tab.
3. Select the thunderbird.exe entry in the processes list, click End Process and click Yes in the "Task Manager Warning" dialog that appears.

Run Update as Administrator

If you are using Windows 7 or Vista:

1. End the Thunderbird process in Windows Task Manager as explained above, or reboot the computer so that no Thunderbird processes are active.
2. Open the Windows Start Menu, type thunderbird and right-click on the "Mozilla Thunderbird" entry that appears.
3. Select Run as Administrator and Continue if the User Account Control dialog comes up.

If the issue is not resolved, end Thunderbird again, as explained above, but this time, open the C:\Program Files\Mozilla Thunderbird folder, right-click on the thunderbird or thunderbird.exe file icon and select Run as Administrator.

Did you edit msconfig or stop Application Experience?

If the issue is not resolved, you may have stopped the service "Application Experience" or disabled "Application Experience" in msconfig.

1. Right-click on an empty spot in the Windows task bar and select Task Manager (or press Ctrl+Shift+Esc).
2. Select the Services tab. Start the service "AeLookupSvc - Application Experience". If you are unable to start it, you may have disabled "Application Experience" in msconfig.
3. To edit msconfig, press the Windows button and type "msconfig" and select the program that is displayed. Select the Services tab. Make sure that "Application Experience" is enabled. Click OK and restart your computer if needed.

Last resort

If you have tried every solution above and you still see the Software Update Failed message, you can update Thunderbird by installing the new version over top of your current version.

Based on information from Software Update (mozillaZine KB)