Rated 5 out of 5 stars

per Gary C Curtin el nov. 18, 2017 ·

One of my all time favourites. Always in the list of add-ons for any new install.

Hoping for an upgrade because it no longer works with Thunderbird 59. It loads, but you can't change the headers, and the full source is just blank.

This review is for a previous version of the add-on (0.6.1).