Changes in Thunderbird 102
compose API
Added support for
additionalFccFolder
,attachVCard
,deliveryFormat
,deliveryStatusNotification
,overrideDefaultFcc
,overrideDefaultFccFolder
,priority
andreturnReceipt
in ComposeDetails.Added getActiveDictionaries(tabId), setActiveDictionaries(tabId, activeDictionaries) and onActiveDictionariesChanged
Added saveMessage(tabId, [options]) and changed the return value of sendMessage(tabId, [options]) from a boolean to a complex object with information about the sent message and its local copies - both functions return a Promise which resolves once the message operation has finished
folders API
Subfolders are now being returned in the order used in Thunderbird’s folder pane.
messages API
Added support for
headersOnly
to MessageHeader.Added createTag(key, tag, color), updateTag(key, updateProperties) and deleteTag(key).
messageDisplay API
Added open(openProperties) to open messages in tabs or windows.
Bugzilla list of fixed WebExtension API defects in Thunderbird 102.