For some reason my browser (Firefox) has been redirecting me to google docs whenever I try opening a .doc/.xls. I checked the manage file types in the options and it is set to open word files with Word and xls files with Excel, but for some reason every time I choose open it goes to google docs and errors out. As far as I know I do not have any physical google docs software installed which could be causing this.

Has this happened to anybody else? If so, how do I revert settings back to the way they are supposed to be?