Why has NIS blocked Foxit Reader .exe file

According to Secunia (that was) PSI, my Foxit Reader v7.3.0.118 is End of Life and is insecure.

I checked my Foxit Reader and it said no updates were available. I went to Foxit's website and it said that there was a new version V7.4x but the download kept crashing. I then went to FileHippo and it started to download the new version but it stopped and I got this warning window:

foxit reader blocked by Norton 2016-03 30th.PNGAny thoughts/advice please?