From an email of Thunderbird, click on a link as https://www.weeklyosm.eu/fr/archives/18880/ never show the page. Firefox does not connect to this site. Only the Ui is shown. Another site also does not work.
ps ax shows the right command.
But the command line firefox in a terminal works fine with all sites.
Note that this system is a virtualbox machine with Linux Mint as guest.
