thank you Rated 5 out of 5 stars

thanks, i have it back again !

yep you usually have to click
view
toolbars
customize

and drag it to the desktop

it might not look like above if you are using non default skins on t-bird

and don't forget to set
view
message body
"as plain text"

This review is for a previous version of the add-on (3.0.3).