hello i have a microsoft 4000 keyboard with a dedicated back button for browsers. this button works for IE, TOR, and Chrome. but doesnt work in firefox. ( see http://xahlee.info/kbd/ms_keyboard/i/ms_n4000_keyboard_LED.jpg ) the dedicated forward button does work in firefox !!? keyboard shortcuts for navigating back to the previous web page also work: the backspace button, the alt+leftarrow, etc. again, because this dedicated back button works in other browsers, it cant be a problem with the keyboard i have cleared the cookies and cache, that didnt work any ideas?