I'm using the Toolbar in FF25.0.1 . I just ran LiveUpdate the other day and got the new, improved toolbar with the vault.
Only problem is, it doesn't work half the time. I can click on "Vault is Open" to my heart's content, but nothing happens. No flyout menu, no option to fill the logins, etc. And if the white bar does pop up "Which login would you like to use?" , there is no pulldown to choose anything.
What's the deal? It's useless!