How to remove duplicate bookmarks

Step by step

You’ll need the free CubDomain extension. Add it to Chrome (opens in a new tab) or Firefox (opens in a new tab) — it takes a few seconds.

1. 1

   Step 1: Open the full bookmarks page and choose Clean up

   Click the cube icon in your toolbar, then Bookmarks, and press Open all at the bottom of the popup. The full page opens in a tab, in the same folders as your browser. Choose Clean up bookmarks → in the left-hand column. If you haven’t turned on Bookmarks yet, the page asks first — see Find broken bookmarks.

   

2. 2

   Step 2: Choose which copy to keep

   Duplicates lists each address saved more than once, with where the copies are, such as “in Bookmarks bar and Work” or “3 copies (Reading, Tools, Other bookmarks)”. Keep in picks the folder whose copy stays; the first copy is kept unless you change it.

   

3. 3

   Step 3: Merge — and undo if you change your mind

   Press Merge on one row, or Merge all at the top of the list. The extra copies are deleted from your browser’s bookmarks and a message such as “Merged 3 duplicates” offers Undo for 10 seconds. After that, Undo last at the top of the page still goes back through your last ten changes.

   

What counts as a duplicate

• DuplicateThe same address saved twice or more, even when it’s written differently: with or without “www.”, http or https, or a slash at the end.What to do: Merge it: one copy stays, in the folder you choose.
• Not a duplicateDifferent pages on the same site, such as example.com/blog and example.com/shop. What comes after “?” or “#” counts too, as it can open a different page.What to do: Nothing — both bookmarks stay.
• Broken or unsafeA bookmark whose site isn’t loading or is flagged unsafe is listed there instead, higher up the same page.What to do: Delete it from that list.

The rest of the clean-up page

• Broken or unsafe — bookmarks to sites that aren’t loading or are flagged unsafe, from the daily check. Delete one, or Delete all.
• Not opened in a year — Move to “Archive” puts them in an Archive folder in Other bookmarks, out of the way but not deleted. If your browser doesn’t record when a bookmark was opened (Firefox doesn’t), it goes by when the bookmark was added.
• Fix all does all three lists at once, as one change you can undo.
• Each list shows its first 50; the buttons at the top of a list include them all.
• Bookmarks your browser manages for your organisation can’t be changed, so they’re left out.

Remove duplicates without the extension

Chrome, Edge and Firefox don’t look for duplicates themselves. Open the bookmark manager (Ctrl + Shift + O in each of them on Windows), search for the site’s address and delete the extra copies one by one.

Questions