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my favorites/bookmarks has too many duplicate saved web sites on it, How do I remove the duplicates?

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My favorites/bookmarks has too many duplicate saved web sites on it, How do I remove the duplicates? This was not of my doing most have been repeated on my favorites bar/list 3 or more times. I am not sure how to delete the duplicates and not the originals. Can anyone Help me with this?

My favorites/bookmarks has too many duplicate saved web sites on it, How do I remove the duplicates? This was not of my doing most have been repeated on my favorites bar/list 3 or more times. I am not sure how to delete the duplicates and not the originals. Can anyone Help me with this?

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If you use Sync, best is to disconnect Sync temporarily during troubleshooting.

This could be a problem with the places.sqlite and favicons.sqlite files in the Firefox profile folder.

  • use the "Places Database" -> "Verify Integrity" button on the "Help -> More Troubleshooting Information" (about:support) page

If errors are reported with "Verify Integrity", close and restart Firefox or reboot and retry.

If "Verify Integrity" cannot repair places.sqlite, rename/remove all places.sqlite and favicons.sqlite files in the Firefox profile folder with Firefox closed. Firefox will rebuild places.sqlite and restore the bookmarks from the most recent JSON backup in the bookmarkbackups folder.

  • keep a backup copy of places.sqlite in case a new places.sqlite database has to be created
  • you lose the history when a new places.sqlite is created

You may have to restore an older bookmarks backup in the bookmarkbackups folder via the Bookmarks Manager (Library).

See also:

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


You can search the Add-ons website for a suitable extension.

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I've tried the fix that was given above, and the problem still exists.