Type about:preferences#privacy<enter> in the address bar. At the bottom of the page, find Location Bar.

FredMcD said

Type about:preferences#privacy<enter> in the address bar. At the bottom of the page, find Location Bar.

Yes, did the following and made sure all were unchecked, then what? remember this is a fresh install and 55.0.3 64 bit.

Is the problem an explanatory line that is highlighted at the top of the drop down -- it tells you what Firefox will do if you press Enter at any given point while typing in the address bar -- or the new row of "one off" search buttons along the bottom of the drop-down?

There is a preference to hide the one-off button section:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste URLB and pause while the list is filtered

(3) Double-click the browser.urlbar.oneOffSearches preference to switch the value from true to false

I think that is what I am trying to turn off. Here is a screenshot.

Hi henryspr1, the top row of the drop-down is informational and tells you what should happen if you press Enter at that moment. The second line is... a suggestion from your default search engine, judging from the icon.

• There is no built-in setting to hide the top row. You can use a custom style rule to hide it. For example, see:
  • https://userstyles.org/styles/122394/url-bar-tweaks-remove-visit-search-limit-width - for installation with the Stylish for Firefox extension
  • https://www.jeffersonscher.com/gm/url-bar-tweaks.html - for use with a userChrome.css file (For step-by-step directions to create a userChrome.css file, you also could see this post: https://support.mozilla.org/questions/1170342#answer-993956 -- skip down to the bolded heading "For the userChrome.css method:")

• If you do not want to see search engine suggestions on the address bar, there is a checkbox for that on the Search panel of the Options page. More info in this article: Use popular search suggestions in the Firefox Search bar.

Thanks! but not quite sure we are on the same page. I was trying to hide everything under the address bar, the line with the globe to go to the site, and the line with the magnifying glass to search. I had turned off search suggestions as I type in the address bar, this helped, but it did not completely get rid of the list.

So I compared my settings from another pc, the settings matched (in the menus) then I did an about:config went to urlb and noticed some other settings were set to true, for example:

browser.urlbar.searchSuggestionsChoice

I toggled every "suggest" to False and now I no longer have the issue. Thanks for your help.

That was very good work. Well done. Please flag your last post as Solved Problem so others will know.