Identity Safe not working intermittently

In the last 30 days or so Identity Safe stopped working intermittently.  Much of the time it will not fill in passwords anymore. Form filling rarely works.  I have many passwords an rely heavily on the product-which doesnt work anymore. I was advised to switch from IE to Firefox, which I did. No help there. What gives?

OS: Windows 7 Home Premium

Product: Norton Internet Security Ver: 19.6.2.10

Firefox 11

IE 9