It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

rickjm: Just a thought but since there is now, self contained containers ie snaps can that not be used to make life easier? and less troubling for the devs?
Eh. There's a lot of matters to still be dealt with in terms of these 'miracle containers'.

JJ2 runs fine enough in Wine.