Add an option to disable the "left click and drag upwards" menu

If you left click and hold the mouse button down on any application on the taskbar, and then drag upwards, it opens a quick menu. (for an application pinned but not running, for example: "<appname>" and "Unpin this program from taskbar" appear).

This is just bothersome, because half the time I'll go to click (for example) firefox to bring it to the front, and accidentally hold down the mouse button for a moment too long. By the time I've let go of the button, the mouse has moved up just enough to be over the "Close window" option and.. well, it closes my window. Gets annoying when I accidentally close a window with 15 Fireox tabs open. An option to remove this menu would be absolutely fantastic. Thanks!