Latest FF version / OSX 10.11.6
FF crashes when I want to enter a name for a controller (Settings) in Editor mode. Everything seems to work fine until I want to edit a name. Crash.
When restarting FF, the same happens. When restarting the Mac, it works fine again for a little while and then the crashes begin again (with naming a controller).
I do get the attached message when starting FF. What to do?
I am hesitant to reinstall FF as I don't know if my own Filters will disappear with reinstalling. I have made a backUp of the filters.
Would trashing the Preferences help?

The Stone Age did not end because they ran out of stones. Niels Bohr