Whenever I scroll fast or press the scroll wheel in on my mouse or press F2 it opens a new page for translation. But I am a fast scroller and it annoys me so much and there is no option to turn that off. Also it does not translate many pages at all, even some easy to translate in Spanish sites. I now have to uninstall this mostly because I can't stand the new page opening every time I scroll with the mouse or press in the scroll wheel.