Changelog for Thunderbird 135

The following WebExtension API changes were introduced in Thunderbird 135.

messages

api messages

• type MessageAttachment.contentDisposition — The content disposition of the attachment, for example attachment for normal attachments, or inline for inline attachments.

• type MessageAttachment.headers — A dictionary object of RFC 2047 decoded attachment headers as key-value pairs, with the header name as key, and an array of headers as value.

spaces

api spaces

• type SpaceTabProperties — Properties for the new tab being opened by clicking on the associated button in the spaces toolbar.