Firefox Won't Retain My Chosen Settings

This is not my week with technology. This is the third or fourth thread I've started this week.

This problem is minor and probably has an elegantly simple solution.

In Mozilla Firefox 20.0.1 in Tools, Options, Privacy: I keep setting Location Bar - "When using the location bar, suggest:". I set it to 'Nothing' but Firefox changes it to 'History and Bookmarks'.

 

I'm going to refer you to the Mozilla Support Site. At the top of the page there are dropdown boxes where you can select your OS and Firefox version.

I'm running the same version of Firefox on my XP Pro computer and just to see if I would have the same issue you're having, I chose your location bar settings, clicked OK and brought the Options dialogue box back up. The setting stayed even after restarting Firefox.

The solution may be elegantly simple OR there may be some other issue.