At some point in the last upgrades, my Session Manager quit working. This is a critical function of FF. After newer versions of FF crashed my whole machine, I downgraded repeatedly until verion 31.6.0, which only crashes my machine every 4 days or so. But now, if I try to save a session, the selection area is blank, as if I have no tabs open, and the Save button is greyed-out. I have multiple tabs open. I use a half-dozen plugins to restore the old (functional) UI, from the mess that has been made of it. I can't disable those to test, because I don't have a UI I can navigate, anymore. I have the latest version of Session Manager. When will this be fixed? Thank You.