I recently sent my PC to the Geek Squad to fix my laptop. They downloaded the hard drive's contents onto a USB and did a full reset of the PC. I have it back now and the first thing I want to do is restore my tabs, history, bookmarks, etc. on Firefox. I tried following the Mozilla's recovery guide but it doesn't work. The only things I got back were my browser extensions. I'm not sure if I did it right. I'm kind of at a loss.