Firefox bookmarks location
See here first:
There are two folders which say "Windows.old" & "Windows.old.000". I found a .json bookmarks file that says "bookmarks-2017-06-27.json
" so I can get to this file.
I can use this file, but going back further do you know of how firefox stores bookmarks that have not been backed up (using the menus Bookmarks > Import and Backup > Backup...)
Since the bookmarks were never backed up in this way either I would like the most recent version before the OS reinstallation and since Firefox remembers all your bookmarks without having to use the above commands then the file must be stored on the hard drive somewhere.