I use firefox, chrome and IE (at the same time) and have never had this program install. I have had others though, that are sneaky. Stay away from download.com and cnet.com. They secretly install this kind of crapware any time you download a legitimate program.
I only use IE for facebook because I was having trouble with it on firefox. I hate IE with a passion and won't use it for anything else. Even if there's a link on facebook I will copy the link and use firefox to open it.