Whistone for IE - Version 1.50 Whistone for IE is a useful plugin for Microsoft Internet Explorer. It will add a few useful features to your browser, making it more user-friendly, convenient and somewhat more powerful. Features include: Open Behind - An indispensable way to open interesting links! Popup Stopper - A recoverable, safe and efficient popup stopper! Batch Control - Minimize, maximize and close all or part of all browser windows using one single click! Easy Switch - Additional ways to easily switch between explorer windows!