
The corporation also distributes and promotes these products. 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.The Mozilla Corporation (stylized as moz://a) is a wholly owned subsidiary of the Mozilla Foundation that coordinates and integrates the development of Internet-related applications such as the Firefox web browser, by a global community of open-source developers, some of whom are employed by the corporation itself. Click OK and restart your computer if needed. Make sure that "Application Experience" is enabled.
To edit msconfig, press the Windows button and type "msconfig" and select the program that is displayed. If you are unable to start it, you may have disabled "Application Experience" in msconfig. Start the service "AeLookupSvc - Application Experience". If the issue is not resolved, you may have stopped the service "Application Experience" or disabled "Application Experience" in msconfig. 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.ĭid you edit msconfig or stop Application Experience? Select Run as Administrator and Continue if the User Account Control dialog comes up. Open the Windows Start Menu, type thunderbird and right-click on the "Mozilla Thunderbird" entry that appears. End the Thunderbird process in Windows Task Manager as explained above, or reboot the computer so that no Thunderbird processes are active.
Select the thunderbird.exe entry in the processes list, click End Process and click Yes in the "Task Manager Warning" dialog that appears. Right-click on an empty spot in the Windows task bar and select Task Manager (or press Ctrl+ Shift+ Esc). You can manually end the Thunderbird process using Windows Task Manager. Once all instances of Thunderbird have been ended or after the computer starts up again, restart Thunderbird to see if the updater is now working. Once the computer starts up again, start Thunderbird, click the Help menu, and select Check for Updates.Įnd all Thunderbird processes and restart ThunderbirdĮnd any Thunderbird processes that may still be active, either manually or by restarting your computer. The easiest way to do this is to restart your computer. Make sure you're the only user logged in to the computer when updating 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. 4 Did you edit msconfig or stop Application Experience?. 2.1 Ending Thunderbird processes on Windows. 2 End all Thunderbird processes and restart Thunderbird.