Rated 4 out of 5 stars

Από τον/την Jayking στις Αύγ. 30, 2018 · μόνιμος σύνδεσμος

I found that if I uninstalled the add-on then re-installed it worked, well, partly... :) I couldn't select the arrows to manipulate the font size. So, I entered the number manually then hit apply and it worked for me via Thunderbird version 60 32bit.