If you find a problem, try to <a href="https://support.mozilla.org/kb/troubleshoot-mode-thunderbird">reproduce the problem in Troubleshoot Mode</a>, then file a bug report for <a href="https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird">Thunderbird</a> or <a href="https://bugzilla.mozilla.org/enter_bug.cgi?product=Calendar">Calendar</a>.
Si tu trova un problema, tenta de <a href="https://support.mozilla.org/kb/troubleshoot-mode-thunderbird">reproducer le problema in le Modo diagnostic</a>, pois compila un reporto de error pro <a href="https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird">Thunderbird</a> o <a href="https://bugzilla.mozilla.org/enter_bug.cgi?product=Calendar">Calendar</a>.