Thunderbird 45.0 发布。
更新如下：
Add a Correspondents column combining Sender and Recipient
Much better support for XMPP chatrooms and commands.
Implement option to always use HTML formatting to prevent unexpected format loss when converting messages to plain text.
Use OpenStreetmap for maps (even allow the user to choose from list of map services)
Allow spell checking and dictionary selection in the subject line
Add dropdown in compose to allow specific setting of font size.
Return/Enter in composer will now insert a new paragraph by default (shift-Enter will insert a line break)
Mail.ru supports OAuth authentication.
Improved options for remote content exceptions (but previous settings based on the sender's email address are not migrated, so these need to be added again by users).
Allow editing of From when composing a message.
Allow copying of name and email address from the message header of an email
Fixed: When sending e-mail which was composed using Chinese, Japanese or Korean characters, unwanted extra spaces were inserted within the text.
XMPP had connection problems for users with large rosters
Spell checker checked spelling in invisible HTML parts of the message.
When saving a draft that is edited as new message, original draft was overwritten.
External images not displayed in reply/forward
Properly preserve pre-formatted blocks in message replies.
Crashed in some cases while parsing IMAP messages.
Copy/paste from a plain text editor lost white-space (multiple spaces/blanks, tabs, newlines)
"Open Draft"/"Forward"/"Edit As New"/"Reply" created message composition with incorrect character encoding.
Fixed: Grouped By view sort direction change was broken, plus enabled custom column grouping.
Fixed: New emails into a mailbox did not adhere to sort order by received.
Fixed: Box.com attachments failed to upload.
Fixed: Drag and drop of multiple attachments failed to OS file folder.
下载地址：https://www.mozilla.org/zh-CN/thunderbird/
来自:开源中国社区
