reply header in Thunderbird

Thunderbird hides the e-mail address in the message pane and the reply header as much as possible. If Thunderbird thinks that you know the person it will only show the name. This is good for people who work with a small set of known users, but I am trying to sell something and exchange e-mails with many people I barely know. it was helped me a lot if I can see the e-mail address all the time.

Step 1: fixed the message pane
- use the Thunderbird configuration editor (tools->options->advanced->config Editor).
- search for 'condensed'
- toggle the setting for 'showCondensedAddresses' (set to false)

Step 2: modify the reply header
I was able to add the date to the reply error by making some changes to the Thunderbird configuration, but I didn't see any option to stop hiding the e-mail address. I found some good documentation at:
http://www.silverspider.com/2004/reply-header-in-thunderbird/
http://panicbook.blogspot.com/2006/10/modifying-thunderbirds-reply-header.html

but I got the complete solution at:
https://nic-nac-project.org/~kaosmos/changequote-en.html

don't know why this add-on is not on the Mozilla website. I had to download it from the Web site and manually install it. works great!