I decided to clear out my hard drive and do a factory reinstall. I thought that I saved all the documents I need on a flash drive. Unfortunately I forgot my Mozilla Firefox favorites. A lot of my old files are located in a file called "old Windows", but I'm not sure if I can find the favorites list on there or how I would (finding were firefox puts stuff is hard enough as it is). Any help?
check to see if your old.windows directory has a "users" directory. From there, it will be in the same directory as Firefox usually puts it.
https://support.mozilla.org/en-US/questions/1024626
I am unsure that all your personal data was copied over windows.old though.