Prevent duplicate during import

Can there be a function to prevent duplicates when importing items? I have 10k items in my library and removing duplicates manually is a hassle. There used to be an add-on (https://github.com/corajr/zotero-prevent-duplicates) that does just that but it doesn't work with the current version of Zotero.

  • This is a great idea, because it would be clearer and more convenient than the list of mostly old false positives in the "duplicates" screen.
  • There's a longstanding ticket for something along these lines (https://github.com/zotero/zotero/issues/1007 ) so it's planned, but turns out to be trickier than it seems (the prevent duplicates add-ons only ever worked for the version of Zotero that ran entirely inside Firefox, which made this easier).
  • Yes, yes, yes! This would be very beneficial. Even if Zotero could have a little pop-up box when it finds an item with a similar title and would ask, "Is this a duplicate or not?"
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