Oceniono na 4 z 5 możliwych gwiazdek

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.

Ta opinia jest o wcześniejszej wersji dodatku (64.4).