Norton extensions for Firefox 3.6.8

I just installed NIS 2010 and Firefox gave me errors for two extensions.  "Norton IPS 2.0" and "Norton Toolbar 4.0" both were reported by FF as "Not compatible with Firefox 3.6.8".

 

After running LiveUpdate to get the latest version of NIS (17.7.0.12), the problem with Norton Toolbar was resolved as Version 4.6 replaced the older version.

 

But I'm still getting the not-compatible message for Norton IPS 2.0.  How can I resolve?

 

System is a desktop with Win XP SP3. I also have Malwarebytes 1.46 installed, but not its realtime protection module (on running on command).

 

Thanks in advance