ça a marché quelques jours, mais maintenant impossible d'avoir des téléchargements automatiques bien que ses icônes dans la barre de Firefox semblent indiquer que tout va bien.
J'attends donc des conseils que je ne trouve pas ni sur Internet, ni ici

I had difficulties on Android FF Nightly with auto-save to filesystem/clipboard/Drive but after managed the WebDAV server it worked.

Brilliant. But of course there are things I would like changed. Some pages I visit have buttons that reveal extra content. One in particular is Similar Worlds. But the Auto-Save saves as soon as the page is loaded which means that the content that would be revealed by those buttons is never saved. It would be handy if the Auto-Save feature would trigger at intervals and save again if the size of the page increased. The next is that it would be good to retain the name of images so that they can be matched with local copies.

An even more useful feature would be the ability to add a list of URLs (with glob patterns) so that it would be enabled automatically when I visit a matching page.