It used to be that when entering a search term in the search bar, you could use the arrow keys to select the search engine before pressing enter to make the experience entirely from the keyboard. Now, one must use the mouse to select the engine to be used. It also does not revert to the default search engine after executing the search. I attempted to set *browser.urlbar.scotchBonnet.enableOverride* to false, and that did not work. I noticed that I had been involuntarily enrolled in an experimental study: Address Bar Update Rollout v1•rollout Address Bar Experience Update which may be the cause of this unwelcome behavior change. If exiting out of that study is possible to restore the previous functionality, please advise how to achieve this. Please advise how to bring back this work flow efficiency. (I am not referring to the address bar.)