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Reviews for Duplicate Tabs Closer

Duplicate Tabs Closer by Peuj

4.4 Stars out of 5
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Review by Firefox user 16024671
by Firefox user 16024671, 2 years ago
Write about my experience with this add-on? I wasted hours trying to figure out why I could have only one tab per domain. It didn't matter if the url was completely different. Utter POS because the PEUJ who designed it doesn't even know the meaning of "duplicate". IT MEANS "EXACTLY THE SAME", got that? Read again.

Developer response

posted an hour ago
What you experienced is the result of the "Ignore path part in URL (domain only)" option being enabled in your settings. When that option is on, the extension considers any two tabs on the same domain as duplicates, regardless of the path. It is off by default.

Turning that option off in the Options page will restore the default behavior, where only tabs with identical URLs are considered duplicates.

If you are still using the extension, v4.2.0 was just released with a number of UI improvements, including a clearer duplicate tabs list that shows which tabs will be closed.
126 reviews
  • by kartis56, 7 hours ago
    4.1.5に更新した所、保存したセッションを開いて、さらに同一タブを開いたときに重複を検知できなくなった

    Developer response

    posted 2 hours ago
    Thank you for the report!

    I was unable to reproduce the issue on my end, but a fix for a related race condition was included in v4.2.0.
    Could you please test with v4.2.0 and let me know if the problem is resolved?

    If you can still reproduce it, it would really help to know:
    What you mean by "saved session" (Firefox built-in session restore, or a session manager extension such as Tab Session Manager?)
    Which mode you are using: auto-close or notify only
    Your Firefox version
    The exact steps to reproduce

    Also, if possible, could you open a GitHub issue? It makes it much easier to track and follow up: https://github.com/Peuj/duplicate-tabs-closer/issues

    Thanks again!
  • by B Tang, 14 days ago
    Works really well. You can configure it to ignore certain parts of the URL like after the search (?) part or hash (#) part of the URL as some sites will generate duplicate tabs with these parts different.
  • by Firefox user 17532799, 4 months ago
  • by Firefox user 19514842, 8 months ago
    Works so sell that,
    when I swithed to another pc, and the dup tabs won't close after pressing the shortcut key,
    it took me quite long to realize that i havent installed this extension on new pc yet.
  • by たやまみ, 8 months ago
  • by gl00ten, 9 months ago
  • by swt88, 9 months ago
    Fonctionnement hasardeux .
  • by ilovemikael, a year ago
  • by Korwin, a year ago
    Works great. I really like the "Filters" options - without them the extension would be pretty much useless to me.
  • by Tempdirz, 2 years ago
  • by Kachajal, 2 years ago
    Absolutely beautiful. Exactly what I wanted. Automatically closing older duplicate tabs when a new duplicate is opened should be a stock option in firefox.
  • by Ole, 2 years ago
    Simple, yet effective.
  • by RazorCMV, 2 years ago
  • by Firefox user 13609694, 2 years ago
  • by BlackWinny, 2 years ago
    Excellent.

    Drawback: the add-on seems to have been abandoned 4 years ago, as seen on Github:
    https://github.com/Peuj/duplicate-tabs-closer

    But I find a bug:
    Whatever your choice in "Priority" parameter in the Options, the add-on always keeps the oldest visited tab. This parameter seems to not work at all.

    And I also have two little requests:
    - First one: it would be nice not to include the tabs "New tab" in the list.
    - And second one: it would be nice to disregard (ignore) a final "/".

    Both requests could have their checkbox in the Option page (with On by default).

    But I don't know what to think, given that the developments seem to have been abandoned 4 years ago.

    Developer response

    posted an hour ago
    Hi,

    The extension was indeed quiet for a while, but development has resumed and v4.2.0 was just released today.

    Priority bug: You are right, this was a real bug. The "Keep newer tab" option was not working correctly due to a comparison error with uninitialized timestamps. It is fixed in v4.2.0.

    New Tab pages: These are already excluded from duplicate detection. Both about:newtab (Firefox) and chrome://newtab/ (Chrome) are treated as blank pages and ignored. They will not appear in the duplicate list.

    Trailing slash: Also already handled. URLs are normalized before comparison and trailing slashes are always stripped, so https://example.com/ and https://example.com are treated as the same URL.

    If you are still using the extension, updating to v4.2.0 should fix the priority issue.
  • by Adrian, 2 years ago
  • by Uday, 2 years ago
    big productivity QoL for disorganized compulsive browsers (user)
  • by akasico1, 2 years ago
  • by DeFEcT, 2 years ago
  • by arsxrs, 3 years ago
  • by A FF User, 3 years ago
  • by hacKim, 3 years ago
  • by Firefox user 18054687, 3 years ago
  • by Reiner030, 3 years ago
    Seems to work fine BUT ONLY IN ONE WINDOW ... I uses several windows and there are "no duplicates" found by this (and other) tab deduplication extension ...

    Because of some somehow gone/lossed tabs I opened a saved session so I had to get rid of duplicated tabs.

    Developer response

    posted an hour ago
    By default, the extension only searches for duplicates within the currently focused window. To detect duplicates across all open windows, change the "Scope" setting to "All windows" in the Options page.