importing bookmarks after installing upgrade OS

I upgraded my previous OS and Monzilla Firefox 18 was my default browser and the upgrade created a windows old folder which list my Firefox and it's components in the folder, but when I click / open / install to the newer OS it does not migrate my history or bookmarks that were in the browser before the Upgrade. How do I if possible get back the bookmarks that I previously had before the upgrade?

↓ Show more ↑ Show less
  • All posts
  • Helpful Solutions
  • helpful
  • solution