If you mean you want to type on the new tab search bar and not have the typing continue in the address bar, then read https://old.reddit.com/r/firefox/comments/1ec2hru/disable_address_bar_search/lewwfop/

If you mean you don't want the address bar to react while you are typing, then read https://old.reddit.com/r/firefox/comments/i6ze35/how_to_completely_disable_search_in_the_address/g0z74np/

I'm not entirely sure what "Remove search from address bar" means.

Hello

wilf2, you didn't specify your version of Firefox.

Firefox advanced customization and configuration options. https://support.mozilla.org/en-US/kb/firefox-advanced-customization-and-configuration

Firefox is a work in progress and, to allow for continuous innovation, Mozilla cannot guarantee that future updates won’t impact these customizations.

A illustration.

If you're under Firefox 148, if the subject is about the preference, browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar. Creat the preference, browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar, is useless.

Since Firefox 148, browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar has been removed.

For information, https://bugzilla.mozilla.org/show_bug.cgi?id=1999334