can not go to last to where I left off in the course
when I log in to the course I am prompted to return to the point where I left off.
however I only come to an empty page
and then (after reloading Firefox) I come to the startpage and have to click forward one page by one. Can anyone advise how do overcome this?
I am on a debian 9 computer, using
firefox-esr/oldstable,now 68.7.0esr-1~deb9u1 amd64 [installed,automatic].