If I am on a page that I want to stay on, but wish to open something from the search bar in a new tab, that page opens twice on two new tabs.
Example: I search for Masarinae
I middle-click to open the About (or Observations) in a new tab and two tabs load simultaneously:
This is on Brave on Ubuntu Studio 19.04.
When I used to do this on FF on UStudio, it would open one tab but have a warning on the tab I opened from to say “Popup blocked”.