Password Copy Protection In Linux

Operating System: SteamOS 3.7.15 Build: 20250903.1 KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.9.0 Qt Version: 6.8.1 Kernel Version: 6.11.11-valve24-2-neptune-611-gfd0dd251480d (64-bit) Firefox Browser: Mozilla Firefox Flatpak mozilla-flatpak - 1.0 144.0 (64-bit) When in browser and signed into account, user is able to copy obscured password information simply by clicking "Copy" in the password manager. User is more familiar with Windows systems and using Firefox browser on that system, which prompts User to input the systems PIN to verify identity. - I'm used to using Firefox on Windows 10. Recently got a Steam Deck and am trying to relearn Linux as it's been awhile. First thing I downloaded was Firefox so I could easily copy my passwords for VPNs and accounts. Didn't think it would be as easy as clicking "Copy" in the password manager. Is there a way to set up a PIN for a little more added security. I've already created a User Account and it did prompt me once (I think), but with the portability I'd like it to ask for a PIN (shorter than password) or frequently. Thanks