Last night my computer (Win 7 Dell laptop - Firefox) did an update. It restarted and when I turned it back on, the computer gave me a message that said "preparing your desktop" before I could log in. When I logged in, it was almost as if the computer was brand new - the desktop theme was new, it said my mouse was ready to use, and then it said that internet explorer 10 was updated. I clicked on Firefox as usual, expecting it to give me the screen where it asks me if I want it to restore all of my tabs, and it was the Mozilla home page and firefox was barebones in the sense that it didn't have any of my add-ons, or even the basic, file, edit, view, history, bookmarks, tools, help buttons on the screen. When I went into the history, it only had today listed, and no websites!!! I am freaking out and I really need to know how to get everything back to the way it was. I had a Personas add-on with 36 backgrounds that I adored, and I don't want to have to go back and re-download all of my add-ons, not to mention there is no way, I would be able to remember or pick up where I left off with all of those tabs I need for work. Please help me!