When I had FF 3.x a few months ago, I didn't have problems with DEP, which left FF3.x alone.
Some web sites I go to started popping up that I had an obsolete version of FF and I needed to upgrade.
So I did so.
Since then DEP has been freaking out over FF.
It won't let me allow Ff and its plugin container to operate. As far as I know, all plugins are up to date.
I have scanned my cmoputer for visruses and trojans, none there. i have AVG paid and malwarebytes paid. Both up to date.
How do I fix this ... before I either heave my computer into the dumpster or format it and convert it to a Linux computer ?