User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0 Build ID: 20160928160550 Steps to reproduce: 1. Go to about:preferences#search and make sure "Provide search suggestions" and "Show search suggestions in location bar results" are disabled (should be done by disabling "Show search suggestions in location bar results" before "Provide search suggestions"). 2. Open an empty tab and enter "test" in the address bar and in the search bar. 3. Enable both options and repeat step 2. 4. Disable "Show search suggestions in location bar results" and repeat step 2. 5. Enable "Show search suggestions in location bar results" and disable "Provide search suggestions" and repeat step 2. Actual results: After step 2: Address bar: No suggestions were made. Search bar: No suggestions were made. After step 3: Address bar: Address and search suggestions were made. Search bar: Search suggestions were made. After step 4: Address bar: No suggestions were made. Search bar: Search suggestions were made. After step 5: Address bar: Address suggestion was made. Search bar: No suggestions were made. Expected results: Since at step 5 enabling "Show search suggestions in location bar results" and disabling "Provide search suggestions" had an unique effect while disabling "Provide search suggestions" caused the option "Show search suggestions in location bar results" to be not checkable anymore they should be made independent of each other in the UI.