작성: jmozmoz (개발자), 날짜: 12월 27, 2009 · 고유 주소

I have heard several bug reports of this kind. But I was never able to reproduce this problem. Could please post some more informations at the thread at mozillazine:
http://forums.mozillazine.org/viewtopic.php?f=29&t=1405155

Is this the first time, you installed this add-on? What other add-ons have you installed? Are there any error message in the error console (Tools->Error Console)? Does it work after the first restart of Thunderbird or does the error persist?