i am trying to edit a script in greasemonkey... but i chose a .ico file instead of a programa such as notepad... i cannot reverse it... do you have any clue as to what i should do?

In your address bar, enter "about:config" and filter by "greasemonkey". The very first option should be "greasemonkey.editor", and you should be able to double click on it to edit the value. You want something like "C:/WINDOWS/notepad.exe".

-Joel