I just noticed that Firefox has drag-and-drop text editing within form windows (like the one into which I'm typing this very message).

Is there any way to shut off that annoying misfeature? I have turned it off in Word, in Outlook, and in UltraEdit, 3 of the 4 places I do most of my text editing in any given day.

I can't find it in About:Config, and Uncle Google isn't helping.

Anyone know?