Need to stop students from opening Firefox
I need to prevent students from using Firefox. I have prevented it in group policy by not allowing them to run an .exe from jump drives or their student folders (Software Restrictions) and by putting firefox.exe on the "Don't run specified Windows applications" (System). The C drive is also hidden via GPO. All this is working.
Now they have discovered that if they click on Start | All Programs | and double click on StartUp a Windows Explorer window will be opened and they can use the Up Button to navigate to Program Files\Mozilla, copy firefox.exe and paste it right back in the same folder and boom, they can double-click and run the setup which does not pick up any proxy and off to Facebook they go.
I cannot get rid of the Standard Buttons bar (to get rid the Up button) because it gets rid of it in IE, too and they must have access to the File menu.
I know this is a long post but I cannot find the answer to this anywhere and thought others here might have faced this one.