Note to Lastpass and Logmein: You ought to be ashamed. Because good grief -- what a mess. Lastpass in Firefox was cool, useful, and glorious -- until LogMeIn gobbled them up. Now it's inconsistent and VERY buggy.

It won't keep me logged in, for instance, despite it explicitily being told to keep me logged in. Sometimes the icon on the toolbar works, sometimes it doesn't. It can't seem to always recognize the site I'm on; nor does it autofill the correct password.

Send in a trouble ticket and the dope says he's replicated it and it's been sent to the developers, something that happens regularly.

Save your money and try Bitwarden (Google it). It's new and not as robust as I'd like, but it's free ($10/year gets you the premium) and the developer actually responds and adds your suggestions to his to-do list.