[xubuntu-users] Thunderbird language settings.

[Jean Gérald]

Hello,

I have been using Xubuntu for some time, several years, and Thunderbird, 
as mail client, both on a desk top and a Notebook. My native tong is 
French and I setted Thunderbird's interface to French, it worked that 
way perfectly well for years.  At when point, when I was still on 16.04 
LTS (i use only LTS'), a routine update "turned" the interface language 
on the Notebook to English.  I searched several forums for help, I tried 
uninstalling and reinstalling to no avail.  Then a few months ago I 
upgraded both machines to 18.04 LTS, the desktop's Thunderbird interface 
is still in French while the Notebook is still in English.  When I 
reinstalled Thunderbird I didn't see any options to set the interface 
language to French, am I blind?  I have the French language package 
installed and spelling checking is done in French but the interface is 
in Englishj?


Could anyone help?


Thanks,


Gérald