How to remove safe search?

I use Norton Security. I use Firefox 39 and Windows 8, My home page is set to google.com.  I have set Firefox search to the search engine I want.  I have removed Norton Safe Search from the list. Neither it, nor "Ask" appears on the list.   I have clicked on the '3 dots'  and turned off both Norton Safe Search and Norton Safe Share. I have disabled every setting in my Norton utilities and via my browser.   I have disabled the Add On, I have run Live Update, I have no new updates. I have followed the steps listed in multiple Norton forums threads. Finally I uninstalled Norton Security and Firefox.   I reinstalled only Firefox and when I start Firefox, I get my first tab as my home page then I click to open a new tab and it is Norton Safe Search.  I have spent hours online following steps, including all of the Norton forums.  Please help.  I have seen other unresolved threads with this same problem so it is not just me.  I no longer have Norton installed and I still am getting this.