Thunderbird 45.4.0 版本发布，功能更新如下：
修正：
Display name was truncated if no separating space before email address.
Recipient addresses were shown in red despite being inserted from the address book in some circumstances.
Additional spaces were inserted when drafts were edited.
Mail saved as template copied In-Reply-To and References from original email.
Threading broken when editing message draft, due to loss of Message-ID.
"Apply columns to..." did not honor special folders
下载地址：https://download.mozilla.org/?product=thunderbird-45.4.0-SSL&os=osx&lang=en-US