Had to reset my computer. I have reinstalled Firefox and would like to recover my bookmarks. How do I do this?

If you didn't do any Firefox FAQ backing up the profile or data there's basically nothing anyone can do there. The data is gone and lost as result of the reset on the computer.

Did Windows possibly create a C:\Windows.old folder with you previous personal data ?

• https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

Were you using Sync ?

• https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer