ok, I messed up a little bit.
I made this yesterday, and it wasn't like I remembered.
Some part of it was true, though.
Let's start again:
I want to open PDFs with 2 different scripts. This, for some reason, DOESN'T WORK.
BUT, if I copy the contents of the script into the "Open with..." dialog, at the bottom, it works.
(zathura works, qpfview doesn't)
"firejail zathura" ----> works in the dialog, but in the script it doesn't. I tried "firejail zathura $1" but that didn't work either.
I need 1 of 2 possible solutions:
1) make a bash script work (this generates an entry on the list with the name of the script)
or
2) change the name of "firejail" on the list to something else
sorry for the 1st post mess. oopsy