I am trying 360 Total Security
since it was recommended on Gizmo's site. I like the virus scanner(even though it flagged BrowserBunch as a "threat.")
I usually don't run with a real time shield. This one has 4 settings with one being "Performance." For that reason I'm giving it a go. So far I haven't noticed a performance hit in Firefox Nightly x64.Edit: 360 Total Security is Freeware
After I browse awhile I'll scan to see what it let through.
On a side note I noticed ToolWiz TimeFreeze released a new version. I tried it briefly. It seems now to insist on a reboot to turn it off. Also I see no setting to not start with Windows(although you can have it come up disabled.) I managed to stop it autostarting by using the tool in WinPatrol.Edit: ToolWiz TimeFreeze Latest Version: 184.108.40.2060 Release Date: 2014-11-19