Instructions for removing search engine do not work, "Remove Button" stays grayed out regardless of check marks. Is there another way that actually works? | Firefox Support Forum | Mozilla Support
Remove default search engine from Safari, Chrome, Firefox on Mac - MacSecurity
Remove default search engine from Safari, Chrome, Firefox on Mac - MacSecurity
how to remove unwanted search engines from google chrome - YouTube
Chromium-based browsers will not let you delete default search engines - gHacks Tech News