Hi,

I am on 13.1 and -at first- could not find how (specifically where) to apply the mentioned solution, I do not know whether it is the same in1 3.2 as in 13.1 (probably it is) but I had to go into the directory /MultiBit-0.5.18 (and thus NOT in the directory /Multibit) and execute the command from within that drectory, after that Multbit worked fluently and also without an open Terminal window when running.

so you'll probably have to to:
(or go to that map in Dolphin filebrowser and from within that map choose (right-click) action-open a terminal)

and then


Good luck!