First, I'm a very novice user when it comes to anything related to Firefox. I have basic understanding of my profile, but certainly can't get into any code. I've also looked at previous threads on this topic and have tried the solutions. Those have not worked. I have taken some screenshots to help describe what I have tried: I went to this profile folder. In it, I changed "sessionstore.js" to "sessionstore.old". I then went into several of the subfolders, "sessions", "sessionbackups", and "sessionstore-backups". Each one had files which were timestamped from before this morning. I copied them, then pasted in the folder shown in the image, renaming to "sessionstore.js". When I did this, I had firefox closed. Each time I reopened firefox, and restored previous session, the session which restored was the one I opened this morning. Is there something about this newest update which I need to do differently? Thanks