Last Pass had stopped working properly since the last two days. It stopped remember usernames and passwords, stopped auto fill option and have to log in whenever I restart Firefox. I don't know if the latest Last Pass update is no longer work with Firefox 56 or Firefox did something to it to force Last Pass users to use their future built-in add-ons. Either way, it has become useless. The only thing good is that I can still go to EDIT and find my usernames and passwords there.