As we all know, Firefox will save the values you type in a form. Then, Firefox will provide a drop down list of previously entered values for form fields that you have completed and submitted in the past. Today, I mistyped my username in a form causing Firefox to store an incorrect value in my form history. So every time I go to enter my username, the wrong username shows up in my drop down list. After much searching, I have finally discovered how to delete individual values from the saved form history in firefox. No extension or anything is required.

Here’s what you do:

1. Navigate Firefox to the form containing the field that has a saved value that you want to delete.
2. Click on the text field to that your cursor is in the text field with the value you want to delete.
3. Press the down arrow on your keyboard until the bad value is highlighted.
4. Press Shift+Delete together and the value will be removed from the saved form history.

This discovery has brought me much joy as, previously, the only way I knew to get rid of a saved form value was to delete my entire form history. Now you can delete values one at a time.