How do you stop Firefox from always opening an HTML document? I downloaded an HTML practice file and must have chosen Firefox to "always open the file". Now when I right-click on the file, the only option is to "open" and there is no option to "open with." I would like to have the file in its original form (like when I first downloaded it) but if I had to choose a program to open it with, I would change it to Notebook++. I have tried deleting the file, but when I re-download it, the computer remembers that it is Firefox that I chose to open it with the last time.