Hi all - Lately as part of organizing my life I have had two Firefox windows open, a work one and a personal one. If I switch back and forth fairly frequently, things seem to function alright. But if I spend too many days only in the "work" window, I lose the ability to use the "personal" window (or vice versa). I can see it and click on it in the "Window" menu, but then nothing happens. I tried Bookmarking All Tabs to see if I could close Firefox and then re-open the window using the bookmarks, but no functionality appears to be accessible for that window. If I restart Firefox once it will dutifully reopen the ghost window (ie. I can see it in the Windows menu but not access it). Restarting windows again loses the window completely. Has anyone else experienced this? Is the only solution just to keep "checking in" on the other window, even if I'm only using one of them for a few days? Thanks in advance, K