Not just another add-on Rated 5 out of 5 stars
This is an add-on that greatly alters the usability of my mail application. "Conversation" has made my working patterns much more efficient, especially due to:
1) I read the WHOLE thread. I no longer have to leave the current view to browse my Sent folder. This was a huge problem before.
2) I can write my reply while staying in the Conversation view and keeping an overview of the previous items. I can even click another thread in the Inbox and go back to the previous thread without loosing text that I was typing.
Furthermore, it retains easy access to the normal composition window.
A big thank you to the author!