Well, both of them already include something a bit similar. Search suggestions are displayed and the items are conditioned to your location, cookies... Pages w

Well, both of them already include something a bit similar. Search suggestions are displayed and the items are conditioned to your location, cookies... Pages which know how to trick themselves to the top of this suggestions get visitors straight from the user's navbar. The main difference between Google/Microsoft's approach and Mozilla's is that the pages themselves don't pay to be displayed directly onto your browser's navbar dropdown.