Hi, first try restarting Firefox - 3-bar menu > Exit. It's possible that Firefox may have created a new empty Profile. To select your original one with all your data, please see [[Recover user data missing after Firefox update]]. ------------------ In case a Refresh has occurred, please look on your Desktop for a file named Old Firefox Data - [[Refresh Firefox - reset add-ons and settings]]. *[[Profiles - Where Firefox stores your bookmarks, passwords and other user data]]. *[[Recovering important data from an old profile]]. ''If your question is resolved by this or another answer, please help other users by marking the best reply as Solved. Thank you!''

After the above, try rebooting the computer.