When filling out an online form I sometimes need to switch to another app to get info. E.g. to find my bank account number. However when I return back to Firefox the form often clears it even disappears and Firefox takes me to back to the previous page meaning I have to start again. This is annoying if I only need one piece of info as I can cut and paste it but if I need two it makes it impossible to complete the form Is there a setting I need to change?