webprotection for Firefox and Opera disabled itself

Hallo,

I have a problem with the app “Norton mobile security for android.  I did not find the problem in ”Known Issues: Norton Mobile Security 3.12 for Android”

 

I use already 11 month Norton Security for Android on a Galaxy S4(GT-I9505  android 5.0.1; basebandversion I9505XXUHOJ2;; version 3.12.0.3021

You can enable webprotection for Opera and Firefox and then  it is “safety” for the browsers Chrome, Firefox, Internet and Opera.

The problem:  every day the protection for Opera and Firefox is disabled after some hours!

You have to enable it every time again!!! This is already some weeks going on. problably since the last update?

 

A bug ??  How to solve this??