How was your FF updated and how did you install lastpass?

The Firefox update made the issue worse. I was able to "disable" then "enable" the lastpass extension, and it would sign in. Now that doesn't work. Lastpass has been an issue a lot over the years. If I didn't use it so much, I would do away with it. Usually I have to refresh Firefox, to get it all working again, and that is a true hassle.

Well remove lastpass and reinstall it again. Sometime just updating the Browser doesn't mean addons update by themselves.

That was my first response as per support techs.