Changes in Thunderbird 106

browserAction API

  • Introduced a default_windows manifest property, to allow a browserAction buttons to be displayed in stand alone message windows.

commands API

  • Added the tab parameter to onCommand, to get information about the active tab, when a command occurs.

compose API

  • Added onAfterSave event, to be notified when saving a message as a draft or a template succeeded or failed.

  • Added onAfterSend event, to be notified when sending a message succeeded or failed.

contacts API

  • Added getPhoto(id) to be able to retrieve the photo of a contact.

mailTabs API

messages API

messageDisplay API

Bugzilla list of all fixed WebExtension API bugs in Thunderbird 103, Thunderbird 104, Thunderbird 105 and Thunderbird 106.