Just to make sure it isn't caused by a different command-line parameter, could you try submitting the same search URL in all browsers? Also, if I were me, I'd test logged out with all Google cookies removed to rule out possible differences there. As you can imagine, we don't know the inner workings of Google Search in detail. You can post on Google's forum here if you want an expert explanation, or speculation from other Google users: https://productforums.google.com/forum/#!forum/websearch Finally, I assume you are not using my script that hides unwnted results ([https://www.jeffersonscher.com/gm/google-hit-hider/ Google Hit Hider]) or any add-on that hides links in pages.