You probably already did everything that's mentioned here :

https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional

When I read your question, I immediately thought : " The OP should get rid of Kaspersky ..... "

Would you please disable your Kaspersky software and see if that will make a difference  ?

I have deleted Kaspersky, tried a number of the things listed above, still same issue.

I just disabled it, and reinstalled Firefox, and still the same issue.

This is extremely frustrating.

Bummer  !

Would you take a look at this thread, please :

https://www.reddit.com/r/firefox/comments/8hprja/the_bookmarks_and_history_system_will_not_be/

Any good  ?

If not, please see :

https://techdows.com/2013/12/firefox-the-bookmarks-and-history-system-will-not-be-functional.html

And :

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Nope, nope and nope.

I had the bookmarks after deleting firefox, running ccleaner and reinstalling. The minute I closed FF, I lost all bookmarks.

So where are you now on this ?

This owned by the same people that deleted your Bookmarks, ccleaner. https://www.ccleaner.com/recuva

Did you try to remove all places.sqlite files including places.sqlite-shm and places.sqlite-wal with Firefox closed?

You can create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

• https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Don't copy places.sqlite, but restore a compressed .jsonlz4 backup from the bookmarkbackups folder.

• Bookmarks -> Show All Bookmarks -> Import & Backup -> Restore

Yes, I tried the new profile, and that did not work either.

I still have no bookmarks.

Well I finally went digging through Chome and all of my bookmarks and log-in info is in there. Guess I'll stick with it for now.

Did you try the Recovery Program : https://www.ccleaner.com/recuva

https://support.mozilla.org/en-US/kb/import-bookmarks-data-another-browser Sometimes only the bookmarks will transfer.

fyi for the future :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen or hold down the Shift key) to see if that has effect.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10