Thunderbird crashes after recent upgrades

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3

I’ve got the same issue.

There is no history for me on the fedora net.thunderbird.Thunderbird flatpak app:

$ LANG=C flatpak remote-info fedora --log net.thunderbird.Thunderbird

Thunderbird - Thunderbird is a free and open source email, newsfeed, chat, and
calendaring client

        ID: net.thunderbird.Thunderbird
       Ref: app/net.thunderbird.Thunderbird/x86_64/stable
      Arch: x86_64
    Branch: stable
   License: MPL-2.0
Collection: 
  Download: 155.6?MB
 Installed: 340.8?MB
   Runtime: org.fedoraproject.Platform/x86_64/f43
       Sdk: org.fedoraproject.Sdk/x86_64/f43

    Commit: 936d9f60ac420057270d5c0c26b3383b04177b678afd6f6e7b7b59df3f0e6663
   Subject: Export net.thunderbird.Thunderbird
      Date: 2025-10-12 19:21:33 +0000
   History:

I converted back to the flathub thunderbird.

flatpak install flathub org.mozilla.Thunderbird.

after a first start i’ve moved the settings:

mv ~/.var/app/net.thunderbird.Thunderbird/.thunderbird ~/.var/app/org.mozilla.Thunderbird/