It is a feature I wanted to have in a web browser; the ability to save form data to a local file (and to be able to refill a form with the saved data from a sel

It is a feature I wanted to have in a web browser; the ability to save form data to a local file (and to be able to refill a form with the saved data from a selected file). (This might be possible with an extension. I wanted it for a different purpose, although the purpose you give is also a use of the same function.)