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