Changes in Thunderbird 78

compose

• Attachments in the compose window can now be accessed with the compose API. These functions have been added:

  • listAttachments(tabId)

  • addAttachment(tabId, data)

  • updateAttachment(tabId, attachmentId, data)

  • removeAttachment(tabId, attachmentId)

  These events have been added:

  • onAttachmentAdded(tab, attachment)

  • onAttachmentRemoved(tab, attachmentId)

  See the documentation on those functions and events for more information.

• A new event, onIdentityChanged(tab, identityId) was added.

identity

• The browser.identity namespace for OAuth handling was enabled.