Flaws are to be expected. High-impact flaws, including data loss, are very rare, but may occur. Protect yourself with <a href="https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile">backups</a>. Low-impact flaws may not be fixed quickly, because fixes are prioritized based on impact.
Njedostatki hodźa so wočakować. Grawěrowace njedostatki, mjez nimi zhubjenje datow, su jara rědke, móža wšak wustupować. Škitajće so ze <a href="https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile">zawěsćenjemi</a>. Njedostatki ze słabym wuskutkom so snano spěšnje njeporjedźeja, dokelž so priorita porjedźenjow wot wuskutka wotwisuje.