Again a large (127 MB) size of updates through LiveUpdate was made, and the Virus Definitions and Web Protection Definitions failed to install. I ran LiveUpdate TWICE to accomplish those two installations and they were successful.
Only yesterday, I installed a plugin to an alternative internet browser. The plugin is Web Of Trust, which is installed into a browser based on Mozilla, but is NOT the Firefox browser. I wonder if this plugin, which seems to not affect Internet Explorer nor Firefox, in any way interferes with any web-related Norton product live updates? I would imagine not; since the plugin installed yesterday is only for the alternative browser, and since a trial google search shows the Norton safety icons, and since examing the plugin & extensions for my Firefox browser show no listing for W.O.T. (Web of Trust).
So far, I find no other problems. Browsers work. Norton scan works. Search on google using Firefox and I.E. show the Norton safety icons; search on google using the Mozilla based alternative shows the W.O.T. safety icons.
information: Windows XP s.p. 3, Norton Internet Security 2011 fully liveupdated, I.E. 8, Firefox 7.01, Pale Moon 3.6.26, computer memory 512MB RAM.