Hello, I have the mac version of Firefox 12 and I would like to know this. When I save a file, lets say .jpg, I want the browser to hide the extension when I rename it. It is very difficult for me to type every time the extension of each format. Every time I press save, I have to type the extension, otherwise it is not readable. Is there any way to hide the extension when i press save? Note: On the other browsers the extensions are hidden, only on ff I face this prob. Thank you