please add double click close tab as an option!!

here is my point, first, double click is more confirmative than mid button, sometimes when I click the mid button(especially on those free spinning scroll wheel mouse), it scrolls a little bit rather than click down the button right away, not all the users are esports player. 

there's also a scene when I'm using trackpad, there's no mid button at all, I have to find the small "x" button on the tab to close it, and sometimes I just don't feel like move away from my trackpad to press the ctrl+w. In addition, if I accidentally opened a background tab, and I want to close it without a mouse, I have to switch to that tab and hit ctrl+w, instead of that, I still have to find that tiny "x" button, if the browser support double click to close tab, I can easily location the wide tab area and close the background tab.

overall please add this as an optional feature to let user to choose! thanks