Remove Saved Passwords in Firefox
Open the Firefox Browser and navigate to the menu in the top right corner of the window.
Click on the Options tile. This will open a new tab with all of Firefox's settings.
Click on the Security tab on the left side of the screen.
On the Security page, click Saved Logins. This will open a new pop-up window with a list of all your saved passwords.
1. Select the password you want to delete.
2. Click Remove.
Repeat steps one and two if there are additional passwords you wish to remove.
3. When finished, click Close.