[GNC] GnuCash won't open

[Ruth L. Mazur]

I have downloaded GnuCash 3.4-Intel to my Mac OS10.11.6  a dozen times but I can not get it to open. For Privacy I’m set to sites that I visit.  Once I set it to Anyone and that didn’t work either. 

This has been very frustrating.  I’m disillusioned with Quicken and want something else, and free is good! What do I need to know to get this app?

Thanks for any help,

Ruth Mazur
Grass Valley, CA