I have FF10.0.2 on 2 XP machines running Norton360 v5.2.0.13, on both the Norton toolbar works just fine.
But I have the subject problem on a Windows 7 machine running FF10.0.2 and Norton360v6.0.1.2.
I have rerun LiveUpdate. Removed and reinstalled FF10.0.2, restarted Windows 7. However FF10 apparently still sees the incompatible Norton Toolbar 2012.5.1.5. Any more ideas?
[edit: Clarified subject.]
Thanks for the advice. I did the exhaust-N360-updates and restart 3 times. No joy. I then executed the N360 remove-and-reinstall and restart. No joy. For good measure I removed and reinstalled FF10.0.2. FF still indicates my Norton toolbar 2012.5.1.5 is incompatible. Also incompatible is the Norton Vulnerability Protection 10.1.0.68-1. Once earlier I was allowed to "enable" the NVP but not currently. Wow.
Finally have success, after getting a message "previously installed update needs restart". Thank you!