Hi, When I installed Firefox the browser had a small edge at the top of the window, above the row of tabs, so that you can click, hold and drag the window to reposition. This is a pretty basic design element which allows you to move the window around by clicking and dragging. For some reason, that small edge has now gone - the tabs extend to the very top of the browser/screen so that the only space on the window where I can click and drag the window is small square around the minimize/maximize/close icons in the top right corner. Does anyone else have this problem? It's a small thing but quite annoying because obviously I use two screens and move my Firefox browser around all the time. I just want the edge back so that I can manoeuver it more easily. Thanks!