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Bookmarks keep duplicating

  • 5 replies
  • 6 have this problem
  • 2060 views
  • آخر ردّ كتبه FredMcD

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I continually have duplicated bookmarks appearing in my "unsorted bookmarks" folder, and I see multiple entries for the "History" "Tags" and "Downloads" items in the library (ctrl+shift+b).

It seemed to start with the extension "Eversync", which I uninstalled a while ago. I've restarted firefox, deleted and recreated my sync profile, and can't seem to get it fixed.

Any ideas on where to go or what to look for?

Chosen solution

The solution was to disconnect sync from all signed-in instances of Firefox (including Firefox for android) and delete my Firefox Sync account. I made an html backup of my bookmarks, uninstalled the Firefox from the machine that was having the problem, removed all Mozilla folders from %appdata% (local and roaming), %programdata%, and deleted all Mozilla/Firefox keys from HKLM, and HKCU in the registry. I also cleared all data from every other instance of Firefox. Reinstalling Firefox and re-importing my bookmarks, creating a new sync account, and re-syncing finally solved the problem.

TL;DR Nuke it from orbit and rebuild.

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All Replies (5)

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Screenshot attached.

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Are you using Sync to sync bookmarks/history?

If you use Sync then best is to disconnect Sync (temporarily) while performing maintenance/repair efforts to the places.sqlite database.

You can check for problems with the places.sqlite database (bookmarks, history) in the Firefox profile folder.

See also:

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Once the problem is fixed,

Use with Extreme Caution;


Bookmark Duplicate Cleaner {web link} Scans for bookmark duplicates and allows you to delete them


Bookmarks Checker - check for bad links {web link} Check favorites for broken or bad links. It checks for bad links and displays a report if it finds something. Check for 404 links, timeout links.

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Chosen Solution

The solution was to disconnect sync from all signed-in instances of Firefox (including Firefox for android) and delete my Firefox Sync account. I made an html backup of my bookmarks, uninstalled the Firefox from the machine that was having the problem, removed all Mozilla folders from %appdata% (local and roaming), %programdata%, and deleted all Mozilla/Firefox keys from HKLM, and HKCU in the registry. I also cleared all data from every other instance of Firefox. Reinstalling Firefox and re-importing my bookmarks, creating a new sync account, and re-syncing finally solved the problem.

TL;DR Nuke it from orbit and rebuild.

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That was very good work. Well Done.