Unless you have a backup, your history is gone.

We do not recommend using other programs to 'clean' Firefox as the browser can clean itself.

Type about:preferences#privacy<enter> in the address bar. The button next to History, select Use Custom Settings.

Turn on Remember My Browsing And Download History At the bottom of the page, turn on Clear History When Firefox Closes. At the far right, press the Settings button. Turn on ONLY Cache and Form And Search History and whatever else you want..

You would need a backup copy of places.sqlite.

You can look at a utility to browse System Restore points.

• https://www.nicbedford.co.uk/software/systemrestoreexplorer/
• https://www.shadowexplorer.com/

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

• Help -> Troubleshooting Information -> Profile Folder/Directory:
  Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder
• https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data