Rated 5 out of 5 stars

Hello!

First of all, many thanks for creating this great extension, it makes Thunderbird similar to Outlook Express/Windows Mail.

Anyway, as rightly mentioned by ouyang, I cannot deselect the messages if the message pain is full; I cannot find blank space to click, as in OE/WM.

I apologize if I do not speak English: what do you mean by “you can deselect a selected message by control clicking on it for Win”???

Thank you again for the attention and congratulations!

EDIT:
Yes, “holding down the control key and clicking on the selected message”. Thanks!
Since I like how Outlook Express & Windows Mail work, I would have preferred a blank space near the columns. Great add-on anyway.

This review is for a previous version of the add-on (1.0.2). 

With regard to "what do you mean by “you can deselect a selected message by control clicking on it for Win”???"

Assuming you are on a Windows machine you can deselect by holding down the control key and clicking on the selected message. On a Mac you can do the same thing by holding down the command key and clicking on the selected message.