Rated 5 out of 5 stars

Everything works great, thanks a bunch. Wondering why the "Quick Reply" feature only works when the conversation itself is open in a new tab, i.e. I use vertical-pane view in Thunderbird, so that I can see the conversation and inbox messages at a glance. But I am unable to quick reply from the vertical pane. The conversation has to be first opened in a new tab, only then, the Quick reply feature works.

Anyway, 5* for the wonderful add-on.

This review is for a previous version of the add-on (2.2.4). 

The quick reply is only enabled for the last message in the conversation. You need to scroll down and expand the last message (by clicking on the snippet) if needed.