Merci je le trouvais pas ce fichier mimeapps.list. Du coup avec un coup de catfish (afficher les fichiers cachés) je l'ai trouvé dans ~/.config
[Added Associations]
x-scheme-handler/http=exo-web-browser.desktop;userapp-Firefox-M7SCQ0.desktop;
x-scheme-handler/https=exo-web-browser.desktop;userapp-Firefox-M7SCQ0.desktop;
x-scheme-handler/mailto=exo-mail-reader.desktop;
x-scheme-handler/trash=exo-file-manager.desktop
x-scheme-handler/ftp=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
x-scheme-handler/chrome=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
text/html=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-extension-htm=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-extension-html=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-extension-shtml=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/xhtml+xml=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-extension-xhtml=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-extension-xht=userapp-Firefox-5XESQ0.desktop;userapp-Firefox-Y2PHQ0.desktop;userapp-Firefox-M7SCQ0.desktop;
application/x-desktop=featherpad.desktop;
message/rfc822=userapp-Thunderbird-KJDWQ0.desktop;userapp-Thunderbird-P0SRQ0.desktop;
application/x-sharedlib=featherpad.desktop;
application/x-perl=featherpad.desktop;
inode/directory=thunar.desktop;
image/png=gpicview.desktop;feh.desktop;
[Default Applications]
text/plain=featherpad.desktop
audio/mpeg=clementine.desktop
application/x-deb=gdebi.desktop;
application/pdf=qpdfview.desktop
image/png=gpicview.desktop
image/jpg=nomacs.desktop
image/jpeg=nomacs.desktop
image/gif=nomacs.desktop
image/bmp=nomacs.desktop
application/vnd.ms-htmlhelp=firefox.desktop
application/xhtml+xml=userapp-Firefox-M7SCQ0.desktop
text/html=userapp-Firefox-M7SCQ0.desktop
application/x-java-archive=Java.desktop
text/x-python=Py-Loader.desktop
x-scheme-handler/http=userapp-Firefox-M7SCQ0.desktop
x-scheme-handler/https=userapp-Firefox-M7SCQ0.desktop
x-scheme-handler/ftp=userapp-Firefox-M7SCQ0.desktop
x-scheme-handler/chrome=userapp-Firefox-M7SCQ0.desktop
application/x-extension-htm=userapp-Firefox-M7SCQ0.desktop
application/x-extension-html=userapp-Firefox-M7SCQ0.desktop
application/x-extension-shtml=userapp-Firefox-M7SCQ0.desktop
application/x-extension-xhtml=userapp-Firefox-M7SCQ0.desktop
application/x-extension-xht=userapp-Firefox-M7SCQ0.desktop
x-scheme-handler/mailto=userapp-Thunderbird-P0SRQ0.desktop
message/rfc822=userapp-Thunderbird-P0SRQ0.desktop
inode/directory=thunar.desktop
J'aime pas : les 2 références à firefox d'une part et les deux réféfences à thunderbird d'autres part. Pourquoi 2 ? Il se trouve que mon install (MX-linux) inclus un firefox et un thunderbird. Mais il se trouve qu'il faut que j'utilise des versions antérieures de ces 2 softs. Du coup j'ai téléchargé les archives, installé les répertoires dans /opt et fait un firefox.desktop et un thunderbird.dektop mais là je ne vois pas à quoi il fait référence ...
@+
PS : sinon inode/directory est OK, je ne sais pas comment c'était avant mon changement