TROUBLE W/ NORTON IPS (Forgive if a Repeat)

I am new to this forum and not a "tech geek."  Please be gentle with me. :smileywink:

 

I just reinstalled Windows XP OS due to Virus Issues.  I have IE8, but just installed Mozilla Firefox Version 3.6.  I also installed latest version of NORTON 360.  All but IPS is working....Got a Message that NORTON IPS is incompatible with FireFox.   Questions:

 

1)  Do I need NORTON IPS RUNNING?

 

2)  What now?

 

Gratitude to YOU, in advance!:smileyhappy: