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.
Mane su očekivane. Nedostaci koji imaju veliki utjecaj na korisnike uključujući gubitke podataka, su jako rijetki, ali se mogu desiti. Zaštitite se s <a href="https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile">sigurnosnim kopijama</a>. Nedostaci s malim utjecajem možda neće biti brzo ispravljeni, jer se daje prioritet na temelju utjecaja na korisnike.