1770050 - 'Move to New Window' from message tab context menu should not duplicate 3-pane tab in the new window

Status: NEW

(Thunderbird :: Mail Window Front End, defect)

Description

[Thomas D. (:thomas8)]

+++ This bug was initially created as a clone of Bug #1738582 +++

Steps to reproduce:

1. double-click on any message to open it in a new tab
2. right-click in the tab header of the message, select Move to New Window.

Actual results:

• New window opens with two tabs
  • duplicate of 3-pane tab
  • moved message tab (focused)

Expected results:

• Don't add a duplicate 3-pane tab, just open the message in a new window (as we do when you right-click on message context menu in message list, then Open Message in New Window). If I really wanted another 3-pane, there's other ways of achieving that.
• Not sure if I'd want the message in new stand-alone window to have a tab header.
  • Advantage is you could easily add other messages side by side for grouping, comparing etc. (as in a container).
  • Disadvantage is clutter for single-message case.
  • Ideally, no tab header if single message, but if I drop another tab, it should revert to tabs.

On a related note, if Move to New Window is not meant to work on the main 3-pane tab, it should be hidden.

Comment 1

[Thomas D. (:thomas8)]

I assume this might benefit from bug 1729384.