Comment 76 for bug 357864

I was really hopeful about mnenhy as the other extension "Temporary From on
Compose" is not exactly right and mnenhy looked to be exactly what I wanted
(along with other nifty features).

Unfortunately, upon testing this, it appears to *add* an additional From: header
and does not override/suppress the original one produced by Mozilla Mail....
which more or less makes it useless.

It also does not affect the Return-Path: header which I can understand but it
may be a nice feature to include a "header set" or something, i.e. changing From
header automatically changes Return-Path: header to the same value (or the
stripped out email address). Dunno how that would work, but will probably x-post
this to the mnenhy devs when I get a mo'.