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The update to version 91.5.0 just knocked out many of my messages. How do I get them back? How do I revert to an earlier version?

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Please help me get my messages back. The upgrade to 91.5.0 knocked them out. I have had this problem with an earlier upgrade. Some, but not all messages, become illegible (not in text form). I would like to go back to an earlier version that does not have this problem.

Please help me get my messages back. The upgrade to 91.5.0 knocked them out. I have had this problem with an earlier upgrade. Some, but not all messages, become illegible (not in text form). I would like to go back to an earlier version that does not have this problem.

Chosen solution

TRy repairing the folder.

  • Right click on folder and select 'Properties'
  • click on 'Repair Folder'
  • click on 'OK'

As you experienced a similar issue before - Did you create a backup of profile name folder prior to updating?

Going back to a previous version may not suddently display correctly and it is not quite so straight forward as uninstalling and reinstalling, but it is possible.

Do you compact folders on a regular basis? Do you allow Anti-Virus products to scan Thunderbird files and folders?

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All Replies (4)

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TRy repairing the folder.

  • Right click on folder and select 'Properties'
  • click on 'Repair Folder'
  • click on 'OK'

As you experienced a similar issue before - Did you create a backup of profile name folder prior to updating?

Going back to a previous version may not suddently display correctly and it is not quite so straight forward as uninstalling and reinstalling, but it is possible.

Do you compact folders on a regular basis? Do you allow Anti-Virus products to scan Thunderbird files and folders?

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Repairing the folder as you suggested worked perfectly. Thank you. The errors occurred possibly just as the update came in. They were all on January 11, 2022 messages.

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I have the same problem. However repairing folders is only a temporary fix. As soon as I navigate away and back, the recently (since upgrade?) received emails are hidden, once again.

I can see the emails in question with a global search of the folder.

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Oh, the horror. Thunderbird should have provided an easy way to get back to the previous version of thunderbird. I regret having the automatic updates on. I have similar problems and opened a ticket at https://support.mozilla.org/ro/questions/1365903. Repairing the inbox folder didn't help.

Modified by tudor.ambarus