I noticed that LiveUpdate wasn't providing me with the proper toolbar fix for Firefox 27 as noted here which ended up being due to me running version 20.x of NIS instead of 21.x.
After browsing the forums for a while, I turned on "download product updates" and ran LiveUpdate. Unfortunately it gave me NIS 21.3.0.12 which despite having a newer version of the Norton Toolbar, again is not compatible with Firefox 27.
Is there any place to download NIS 21.1.0.18? I tried the Update Center but it says I'm already using the latest version and doesn't offer a method of rolling back. I don't like Firefox 28 to 30 so I prefer to stay with 27 for the time being.
Thanks!
PS:
Everything was fine until I ran LiveUpdate today and it updated the toolbar beyond what was compatible with Firefox 27. It's unfortunate we can't select only virus definitions in LiveUpdate. I was using NIS 21.1.x specifically because it was resistant to Heartbleed and compatible with Firefox 27.