Please do <a href="https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile">regular backups</a> to protect your Thunderbird data profiles.
Mesedez, egizu sarri <a href="https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile">segurtasun kopiak</a> zure profileko datuak babesteko.