Changes in Thunderbird 88

compose

• added a type property to ComposeDetails, to distinguish between new, reply, forward and draft

• added a from property to ComposeDetails, to get/set the actual from address (independent of the used identity)

contacts

• fixed quickSearch([parentId], queryInfo) to not fail on mailing lists

menus

• added a tools_menu context to ContextType

• added a selectedAccount property to OnShowData and OnClickData, if the menu was opened on a root folder in the folder pane

• fixed onClicked to keep the user input status so openPopup() can be used

messages

• added listAttachments(messageId) and getAttachmentFile(messageId, partName) methods to work with message attachments

• fixed getRaw(messageId) to work for nntp/news messages

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Bugzilla list of fixed WebExtension API defects in Thunderbird 88.