I had the old version of firefox and it was compatable with all I had, this new version is not compatable with frameworks(microsoft windows) and continues to disable it so the screen is right justified and half of it is cut off. the only way to adjust to see the full screen is to use full screen feature in the options menu. I dont like this much because there are lots of things that do not show and each time I have to get things done, I have to either close screen or go to full screen example, in order to close the browser, scroll up the page for it to drop down the option to close or minimize but as soon as that does, when I need to see the full screen, I have to open options in order to change back to full screen just so that the option to close or minimize shows up. This is very frustrating, is it possible to have the old version without having to upgrade because this version is not compatible not just with my add-on but my patience.