Symbol von Close last tab with middle-click

Close last tab with middle-click 0.1.1.1-signed  Kein Neustart

von ypeels

THIS ADD-ON IS NOW UNNECESSARY FOR FIREFOX 31 AND UP!

Tired of middle-clicking on the last tab in Thunderbird, only to have nothing happen? This add-on embraces the industry-standard middle-click behavior of IE, Chrome, and Firefox (3.6- and 31+).