Outlook and eM Client show a compact message list view, when you slide the width of the message list below a certain point (see images 1-2 below). It does this by Putting the sender above the subject (or vice-versa), in the message list pane. This allows you to easily read all the important information, in full, with increased screen real-estate for other things. Thunderbird places all message list information in strict, side-by-side columns, no matter how narrow you adjust the message list pane (see image 3 below). This means the information is truncated, and that you can no longer easily read it.

Is there any add-on that will allow a compact message list view for Thunderbird, is this something I can currently achieve somehow, or is there any plan to add this functionality?