> what does lockbox bring to the table because my passwords I already shared between mobile and desktop through sync ? Lockbox makes those passwords accessible

> what does lockbox bring to the table because my passwords I already shared between mobile and desktop through sync ? Lockbox makes those passwords accessible outside of Firefox. It implements Android's autofill API, so you can, for example, use it to log into native apps on Android. You can also use it to access your passwords when you're using other browsers, which is especially important with the rise of in-app browsers.