How to prevent these alerts?

My mother-in-law uses a netbank called Sampo Pankki. When she enters the page where she can log in her account banks security apllication that runs on java starts, And this applicatin has aways a different name and values. D+ alerts thea it will access a protected com-interface and sandbox wants to isolate it. Multiple clicks on allow finally stops these alerst but in the next time she is entering the bank the alerts are back.
Is thehe any way to put this siten in some kind on permitted list?

Being discussed here. Proceed with caution.