Automatically start JRE on startup???

[Karthik Sheka]

Hi.
    I'm starting my wife on Mozilla for the first time (I've been using 
it since around M16).  I would like it so that whenever the program is 
started the JRE is also loaded.  The main sites she use all use Java to 
some degree, and it's easier for her to start the JRE at the same time.

Is there some line I can place in her user.js/prefs.js to automatically 
start the JRE on startup?

BTW, changing her homepage to a site that uses Java is not an option. :-)