Changelog for Thunderbird 147

The following WebExtension API changes were introduced in Thunderbird 147.

api compose
api messages
  • function getHeaders — Returns all message headers of the specified message, without MIME structure parsing. Throws an error if the message cannot be read, for example due to network issues. This function is significantly faster than messages.getFull when only the header information is required.

  • type HeadersDictionary — A dictionary object of headers as key-value pairs, with the header name as key, and an array of headers as value.

Whether supported attachments (for example, media files) are shown inline within the body of displayed messages. This property is read-only.

api proxy

Provides access to global proxy settings for Thunderbird and proxy event listeners to handle dynamic proxy implementations.