When you already saved your login password such as for web email, and now you want to remove it from Mozilla Firefox browser :
1. Copy this code/address :
about:preferences#privacy
2. Paste it to the address bar of Mozilla Firefox browser.
3. Choose Saved Logins.
4. In Saved Logins page you will see list of saved login accounts, site information, username, also you can show the password. To remove, select Remove All or Remove one by one.
