I had always used Bitdefender as my primary anti-virus, however upon hearing 360 included both Bitdefender and Avira engines, I decided I would give it a try.

Ignore the bad advertising given by them apparently "cheating" in antivirus tests. At the worst it was a dumb move rather than fraudulent; but a simple switch after install turns on one and/or the other.

Once it is installed, install this add-on and get instant protection for the sites you visit, including a "shopping mode" which turns on automatically when you visit shopping sites. This actually acts more like a hardened/verbose version of the antivirus, automatically notifying you of ANYTHING suspicious while the mode is switched on. But besides that, it stays largely hidden, with just a tick on the add-on icon if the website is deemed safe. No bloat like McCaffee or other similar programs.

Note that it doesn't do anything on its own; you need one of their (free) antivirus programs for it to connect to . I'd recommend the 360 Total Security Essentials version, just because I don't feel there's anything in the full version that is good enough to choose over other software. Once that improves I might change my mind ;)