Comment 9 for bug 1002113

Perhaps I miss something, but it seems to me to be near-critical that something as fundamental as this should work.

I note that it is unclear how to adapt the workaround posted by David above such that it allows one to e.g. change the default image viewer.

I note also that even the program Ubuntu-Tweak is unable (on my Mint 17.3 x64 Cinnamon computer) to change the default viewer for jpg images.