Since JNLP files are simply Java Web Start files that open applications through an Internet browser, any browser that works in Windows 8.1 will open a JNLP file as long as you have Java installed.

The .JNLP file used with this application illustrates how it’s possible for signed code to execute outside the default sandbox environment provided by Java Web Start.

When you deploy applications through Sun’s Java Web Start, they can’t hurt the end user’s system because they’re run in a sandbox, a restrictive area that limits access to system resources ...

Like Java applets, your application will be constrained to a sandbox on the client unless you used signed jars and configure permissions correctly in your application's JNLP file.

I need to run a jnlp file for work and it seems as of Mojave, it is now blocked by Java Security. Apparently in the old days one could just use the applet in System Preferences to lower the ...