Changes in Thunderbird 106

browserAction API

• Introduced a default_windows manifest property, to allow a browserAction buttons to be displayed in stand alone message windows.

commands API

• Added the tab parameter to onCommand, to get information about the active tab, when a command occurs.

compose API

• Added onAfterSave event, to be notified when saving a message as a draft or a template succeeded or failed.

• Added onAfterSend event, to be notified when sending a message succeeded or failed.

contacts API

• Added getPhoto(id) to be able to retrieve the photo of a contact.

mailTabs API

• Added setSelectedMessages([tabId], messageIds).

messages API

• Added the message member to the MessageAttachment type, to provide access to attached messages.

• Added the external member to the MessageHeader type, to indicate if a message is an external message, not stored in a message folder (message attachments or messages opened from file).

• Added the new member to the MessageHeader type, to indicate if a message has been received recently and is marked as new.

• Added import(file, destination, [properties]) to import messages into Thunderbird (currently only supported for local folders).

• Renamed MessageChangeProperties to MessageProperties, as it is now also used by import(file, destination, [properties]), to define the properties of the imported message.

• Added the new member to the MessageProperties type (currently only supported by import(file, destination, [properties])).

messageDisplay API

• Fixed onMessageDisplayed to be triggered for external messages.

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Bugzilla list of all fixed WebExtension API bugs in Thunderbird 103, Thunderbird 104, Thunderbird 105 and Thunderbird 106.