Is an old password populating automatically?

Please follow the guide below to solve this issue:

CHROME

1. Click the Chrome menu icon. (Three dots at top right of screen)
2. Click on 'Settings'
3. In the 'Autofill' section, expand the area for which you wish to disable Autofill
4. Toggle the setting 'OFF' if it is on.  The system will automatically save your settings. 

INTERNET EXPLORER 11

1. Click on the Tools menu icon. (Gear at top right of screen)
2. Click on 'Internet Options'
3. Select the 'Content' tab
4. In the 'AutoComplete' section click on 'Settings'
5. Uncheck 'Forms' and 'User Names and Passwords' on 'Forms'
6. Click OK in the AutoComplete Settings Window
7. Click OK in the Internet Options Window 

FIREFOX

1. Click on the Firefox menu icon. (Three lines at top right of screen)
2. Click on 'Options'
3. Choose 'Privacy & Security'
4. In the Forms & Autofill section, uncheck Autofill Addresses. The system will automatically save your settings.