This is obsolete!
There's a way better way to do it, which seems to exist out-of-the-box in Xubuntu 16.04.
See details in replied thread below.
Here's a slightly adapted/improved version of this answer on AskUbuntu. about how to mount disk images (ISO) from the GUI file explorer Thunar in XFCE/Xubuntu.
In Thunar, add a new Custom Action:
Then, enter the following to execute as command:Edit > Configure custom actions > (+)PLUS icon
Code: Select all
mkdir /tmp/%n.mount & fuseiso %f /tmp/%n.mount & ln -s /tmp/%n.mount ~/Desktop/%n.mount
Beware: You have to unmount the images manually after you're done.