Changelog for Thunderbird 123
The following WebExtension API changes were introduced in Thunderbird 123.
contextualIdentities
function move — Reorder one or more contextual identities by their cookieStoreIDs to a given position.
messages
api
messages
function deleteAttachments — Deletes the specified attachments and replaces them by placeholder text attachments with meta information about the original attachments and a text/x-moz-deleted content type. This permanently modifies the message. Deleting attachments of encrypted messages is not supported and will throw an ExtensionError.