>http://manuscrit.ville-laon.fr/_app/ms/OEB/Ms239/index.html< needs flash player to open up which is stopped begin 2021, are there alternatives to open or what is to do for using this historic database in advance. Thank You! SJH
Adobe built a "kill switch" into the Flash plugin so it can't run any more in Firefox.
Various people have created partial alternatives for Flash, but I don't know which one would make the most sense to try out. Maybe you can find some comparison articles on the web?