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Calendar and Tasks are gone after update to 115.12.2 (64-bit)

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  • Last reply by Wayne Mery

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After the update to 115.12.2 (64-bit) installed, I made a couple of changes to tasks and TB went sideways and crashed, and continued to crash upon startup every time I restarted, even after a reboot. So, I copied a backup of my AppData\Roaming\Thunderbird directory onto the TB AppData\Roaming\Thunderbird dir. Now TB starts, but I have only Mail and I see no way to get Calendar/Tasks back. How do I do that?

After the update to 115.12.2 (64-bit) installed, I made a couple of changes to tasks and TB went sideways and crashed, and continued to crash upon startup every time I restarted, even after a reboot. So, I copied a backup of my AppData\Roaming\Thunderbird directory onto the TB AppData\Roaming\Thunderbird dir. Now TB starts, but I have only Mail and I see no way to get Calendar/Tasks back. How do I do that?

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What crash IDs are listed in Help > Troubleshooting information?