when I am on internet explorer and example I am in emails then when I want to close a single tab , this then give me a single tab or close tabs meaning all tabs .But in emails I more often than not only want to close the tab of that particular email and not close all tabs , as obviously this means I have to keep going back to login to emails just to read every single email . do you have the ability to put this feature on Firefox as a single close tabs push one button option, as in one single button push ?