Rated 5 out of 5 stars

per Stuart Bury el set. 3, 2015 ·

I'm giving this addon five stars simply for the Copy and Paste buttons!

This review is for a previous version of the add-on (2.8). 

per Realraven (Axel Grude) (desenvolupador) a set. 3, 2015 ·

... if you need real clipboard support (to be able to copy into another instance of Thunderbird) please raise a bug here:
http://quickfilters.mozdev.org/bugs.html
File support is soon to come as well!