This app is just not secure. At best, all passwords are secured by a six digit PIN. Sure, you can set up a good passphrase for your protonmail account, but I've used it like twice. Once you log in, it doesn't log you out - even when you exit Firefox. It's open to whomever uses Firefox. The best you can do is require a PIN which must be used if PP has been idle for a certain time. Oh, and the app drops the PIN requirement occasionally and it must be reset leaving you completely exposed in the meantime. Seriously, only six digit protection for all our passwords. Might as well skip a password manager and just use 123456 everywhere.