I absolutely love Gridmove, and I've recommended it to several friends. It doesn't seem to be compatible with the latest versions of Firefox. That browser has moved away from having a normal toolbar to having 1 dropdown menu in the top left corner. Whenever I click the drop down menu, Gridmove detects the window as being moved against the edge of my screen, and will re-size it. I've set Gridmove to ignore Firefox, but it would be nice to have Firefox work as normal and be able to re-size it with Gridmove.