This article describes some of the major changes visible to users in Thunderbird version 78. Full details of all the changes can be found in the <a href="%(release)s">Thunderbird release notes from 78.0 and up</a>.
此文章描述了 Thunderbird 78 版中用户明显可见的若干主要更改。有关所有更改的详细信息，请参阅 <a href="%(release)s">Thunderbird 78.0 发行说明</a>。