A much needed add-on, but... Rated 4 out of 5 stars

A much needed addon to stop autoselection of a meessage you may not want to display, but it only works when you have the message selected and hit the delete button. It doesn't work on TB9.0.1 when delete is selected from the context menu.
Shame really, it's ALMOST worth 5 stars... will come back and rate it at 5* if/when this gets fixed!

Edit: Other extensions installed are:
Adblock Plus 2.03
Deselect on Click 1.0
Sun Cult 1.3.20111118
Test Pilot 1.3.4
Webmail 1.4.6

Any of these look likely suspects to cause a clash?

This review is for a previous version of the add-on (1.0). 

This works for me on 9.0.1; do you have any other add-ons installed that might be interfering?