changeQuote 1.8.1
by caligraf
It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.
About this Add-on
You can use a completely personalize header.
You can configure all Options in the Add-on Options of changeQuote in Tools menu