Norton Toolbar Disabled in FF19

When I upgraded to FF19 and went thru the multiple LiveUpdate steps, I still don't get NT 2013.2.4.2 and Norton Vulnerability Protection 11.1.1.5-2 available to me.  When I click on FF's Add-ons Manager button, both of these show Disabled and there is no Enable button.  I tried going back to FF18 (which had been working with NT) and applying LiveUpdates, which got me back to the same level of NT, but it still shows NT disabled.  Nothing seems to be enabling NT.  Any suggestions (beside waiting for Comcast Security Suite 20.3)?

 

[Edit: Clarified Subject]