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After latest update, Thunderbird crashes immediately when trying to start it

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I am running Windows 11 Pro 25H2. After updating Thunderbird recently to the latest version, it is crashing immediately upon starting Thunderbird, not even bringing up the initial screen.

The message is

"Thunderbird has stopped working. A problem caused the program to stop working correctly. Please close the program."

In addition, it brings up the Mozilla Crash Reporter, which states

"We are sorry

Thunderbird had a problem and crashed. We will try to restore your tabs and windows when it restarts."

I do not want to lose all my old POP3 messages, etc.

Please help, Nina

I am running Windows 11 Pro 25H2. After updating Thunderbird recently to the latest version, it is crashing immediately upon starting Thunderbird, not even bringing up the initial screen. The message is "Thunderbird has stopped working. A problem caused the program to stop working correctly. Please close the program." In addition, it brings up the Mozilla Crash Reporter, which states "We are sorry Thunderbird had a problem and crashed. We will try to restore your tabs and windows when it restarts." I do not want to lose all my old POP3 messages, etc. Please help, Nina

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