Purpose
Version 112.0 and later of Mozilla Firefox allow users to right click on a password field & select Reveal Password. The below guide allows you to disable this on an individual device.
Instructions
1. Open Mozilla Firefox and on the search bar type in about:config and enter.
2. This will go to Advanced Preferences Config > Click on the Accept the Risk and Continue to proceed.
3. Look for this line, layout.forms.reveal-password-context-menu.enabled
4. Update the value to “false“
5. Restart Firefox.
6. This should now removed “reveal password” function in Firefox.