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Duplicate Tabs Closer version history - 25 versions

Duplicate Tabs Closer by Peuj

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Duplicate Tabs Closer version history - 25 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 4.2.6

    Released Jun 16, 2026 - 800.04 KB
    Works with firefox 140.0 and later
    Bug fixes:
    • Fixed: Duplicate tabs inside collapsed Firefox tab groups are now detected. Previously, a tab inside a collapsed group was invisible to the extension and its duplicate would go undetected.
      -Fixed: New tabs (about:newtab) are again correctly detected as duplicates after being opened.

    Source code released under GNU General Public License v3.0 only

    Download Firefox and get the extension
    Download file

  • Older versions

    Version 4.2.5

    Released Jun 16, 2026 - 800.03 KB
    Works with firefox 140.0 and later
    New features:
    • Skip blank tabs: new option in Priority & Exclusions (Options page only) that completely
      excludes blank tabs and new tab pages from duplicate detection. When enabled, these tabs are
      never shown in the list, never auto-closed, and never used as a reference when comparing tabs.
    • Options page reorganized: Priority & Exclusions is now a unified section including Skip blank
      tabs and the whitelist. Theme, Popup, and Badge each have their own collapsible section under
      an "Advanced" divider.

    Bug fixes:
    • The duplicate tabs list no longer freezes the popup when there are many duplicate tabs
    • about:newtab and other new tab pages are now correctly detected as duplicates.
    • Pause badge (⏸) now shows immediately on newly opened or navigated tabs while monitoring
      is paused (Chrome).
    • Discarded tabs on Chrome are now correctly detected as duplicates after being restored.
    • about:home (Firefox) and chrome://newtab/ are now treated as blank tabs.

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.2.4

    Released Jun 15, 2026 - 797.25 KB
    Works with firefox 140.0 and later
    New features:
    • New option "Prioritize active window" (Priority section, enabled by default): when duplicates span multiple windows and the age-based preference would close the tab in the focused window, keeps the focused window's tab instead. Only applies when Scope is set to "All windows" or "Container in all windows".
    • New "hide options column" button in two-column popup layout: click the chevron handle on the left edge of the duplicate tabs column to collapse the options column. The popup narrows to focus on the list. State is saved and restored.

    Bug fixes:
    • Fixed: keyboard shortcut "Close all duplicate tabs" was ignoring the Scope setting and always closing across all windows; it now respects per-window scope
    • Fixed: pause state was not reflected on the options page when toggled from the popup
    • Fixed: discarded (unloaded) tabs were not detected as duplicates on Chrome after the discard operation replaced the tab with a new internal ID

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.2.3

    Released Jun 14, 2026 - 795.54 KB
    Works with firefox 140.0 and later
    Bug fixes:
    • Fixed: whitelisted tabs (e.g. about:newtab, about:blank) could still be auto-closed in some cases, most commonly noticed as new tabs disappearing after a few minutes of browsing
    • Fixed: user settings including the whitelist could be erased after an extension update

    Other changes:
    • URL and title pattern rules with more than 5 wildcards are now ignored to prevent the extension from freezing on pathological inputs

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.2.2

    Released Jun 10, 2026 - 795.59 KB
    Works with firefox 140.0 and later
    • Tree Style Tab (Firefox): DTC now expands collapsed subtrees before closing a parent tab, preventing TST from cascade-closing children.
    • Fix: when closing same-window duplicate tabs, the active tab no longer overrides the age-based priority setting.
    • Fix: tabs restored via undo-close are no longer silently ignored by duplicate detection.
    • Whitelist: lines wrapped in /.../ are now treated as regular expressions. Example: /^(?!.*google.com)/ whitelists everything except Google.

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.2.1

    Released Jun 9, 2026 - 793.5 KB
    Works with firefox 140.0 and later
    Bug fixes
    • Fix chrome:// whitelist: URLs without a trailing slash are now matched correctly
    • Add file:// URL support for duplicate detection and filtering
    • Fix option settings not migrating correctly after extension update
    • Fix wrong tab kept when using "compare with title" with 3 or more duplicate tabs
    • Fix extension getting stuck after an internal error

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.2.0

    Released Jun 9, 2026 - 793.2 KB
    Works with firefox 140.0 and later
    New features
    • Duplicate tabs list: tabs that will be closed now display with a strikethrough title; the kept tab is shown at full brightness.
    • Hide whitelisted tabs button: a new icon button shows or hides whitelisted tabs in the list. When active, the Close duplicates button also skips whitelisted tabs, independent of the auto-close setting.
    • Whitelisted URLs section is now always visible in the Options page.
    • Close duplicates button (renamed from "Close all") throughout the popup and options page.
    • Ignore path part in URL option now shows (domain only) for clarity.
    • Changes to the whitelist immediately refresh the duplicate tabs list.

    Bug fixes
    • Fixed Keep newer tab always keeping the oldest tab (null timestamp comparison bug).
    • Fixed tooltip localization on the options page (shield icon showed raw key instead of translated text).
    • Fixed Chrome badge going blank during page navigation.
    • Fixed Chrome race condition where tabs could be missed in multi-group scenarios.
    • Fixed spurious badge repaints on no-op transitions.
    • Fixed priority settings not refreshing the live duplicate list on the options page.
    • Fixed container color overriding strikethrough styling on duplicate rows.
    • Fixed shrunk mode not restoring the options panel when un-shrinking.

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.1.5

    Released Jun 7, 2026 - 790.51 KB
    Works with firefox 140.0 and later
    Fix: popup and options page failed to load when installed from the XPI file.
    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.1.4

    Released Jun 7, 2026 - 786.19 KB
    Works with firefox 140.0 and later
    New features:

    Two-column popup layout (new default): The popup now shows options and the duplicate tabs list side by side. The layout can be changed back to single column in the Customization section.

    Grouped view: Click the group icon in the duplicate tabs footer to switch between flat and grouped views. In grouped view, duplicate tabs are organised by matching rule group, collapsed by default. Each group shows a count badge and a close button to close all tabs in the group at once. The view preference is saved and shared with the options page.

    Pause monitoring: A new option lets you temporarily pause duplicate detection without changing any settings.

    New locale: Brazilian Portuguese (thanks to Volenski).

    Bug fixes:
    • Badge not repainted after opening a new window, closing a window, detaching a tab, or auto-closing across windows
    • Duplicate about:newtab tabs not auto-closed in Firefox
    • Whitelist UI broken when multiple entries were present in the popup
    • Popup scrollbar layout shift in Firefox 131+

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.1.3

    Released Jun 3, 2026 - 784.92 KB
    Works with firefox 140.0 and later
    New feature: Pause monitoring
    Pause and resume duplicate tab detection from the popup or options page.

    Bug fixes
    - Fixed tabs opened from bookmark folders or batch tab openers (e.g. Snap Links) being incorrectly closed during their loading state
    - Fixed duplicate about:newtab tabs not being auto-closed
    - Fixed badge disappearing when "Show badge if no duplicate tabs" is off and monitoring is paused

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 4.1.1

    Released Jun 1, 2026 - 781.83 KB
    Works with firefox 128.0 and later
    This version brings several improvements since v3.5.3:
    • Full Manifest V3 support for Chrome, Edge, Opera, Vivaldi, Brave, and Firefox
    • 11 visual themes (light and dark)
    • URL and title pattern rules for flexible duplicate matching
    • Fuzzy title matching with configurable similarity threshold
    • Intentional duplicate protection (tabs opened via "Duplicate Tab" are not auto-closed)
    • New keyboard shortcut to toggle between auto-close and manual mode
    • Faster popup loading (removed jQuery dependency)
    • Improved badge reliability (Chrome)
    • Improved accessibility (button roles, aria attributes)
    • Various security and code quality improvements

    Full release notes: https://github.com/Peuj/duplicate-tabs-closer/releases

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.5.3

    Released Jun 13, 2020 - 1.04 MB
    Works with firefox 68.0 and later
    * Fix: Popup UI issue

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.5.2

    Released Jun 11, 2020 - 1.04 MB
    Works with firefox 68.0 and later
    * Code optimizations
    * Update UI
    * Bug Fixes
    * Add: Collapsible 'Options' menu
    * New: Shrunk mode to hide unpinned option
    * New: Custom option to close popup panel after closing duplicate tabs

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.5.1

    Released May 23, 2020 - 1.28 MB
    Works with firefox 68.0 and later
    Bug: Fix option issue

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.5.0

    Released May 22, 2020 - 1.28 MB
    Works with firefox 68.0 and later
    * Code optimizations
    * New filter option: Ignore case in URL
    * New filter option: Ignore 'www' in URL domain name
    * New scope option: Container in active window
    * New scope option: Container in all windows
    * Update UI

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.4.1

    Released Sep 3, 2019 - 332.3 KB
    Works with firefox 55.0 and later
    Fix: options not persisted

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.4.0

    Released Aug 28, 2019 - 332.31 KB
    Works with firefox 55.0 and later
    New: Add managed storage support (thanks piroor)
    New: Add Japanese locale (thanks piroor)

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.3.2

    Released Apr 16, 2019 - 330.22 KB
    Works with firefox 55.0 and later
    * Fix: issue with Firefox in private mode
    * Fix: ru and uk locale (thanks perdolka)
    * Some code optimizations

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.3.0

    Released Mar 31, 2019 - 323.59 KB
    Works with firefox 53.0 and later
    * New: Add whitelist for automatic close mode
    * New: Add ru and uk locale (thanks perdolka)
    * Fix: latency when saving options

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.2.0

    Released Mar 12, 2019 - 325.77 KB
    Works with firefox 53.0 and later
    New: 'Show badge if no duplicate tab' option to show badge with value 0 if no duplicate tab

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.1.10

    Released Jan 3, 2019 - 324.13 KB
    Works with firefox 53.0 and later
    * New: 'Keep and reload older tab' option
    * Fix: runtime.sendMessage issue
    * Fix: settings synchro between popup and tab option
    * Use setBadgeText and setBadgeBackgroundColor windowId (starting Firefox 62)
    * Force setBadgeTextColor to white (starting Firefox 63)
    * Optimize search duplicate tabs
    * Support minimum version Firefox 53

    Source code released under GNU General Public License v3.0 only

    Download file

  • Version 3.1.9

    Released Jan 2, 2019 - 311.69 KB
    Works with
    * New: 'Keep and reload older tab' option
    * Fix: runtime.sendMessage issue
    * Fix: settings synchro between popup and tab option
    * Use setBadgeText and setBadgeBackgroundColor windowId (starting Firefox 62)
    * Force setBadgeTextColor to white (starting Firefox 63)
    * Optimize search duplicate tabs

    Source code released under Mozilla Public License 2.0

    Download file

  • Version 3.1.8

    Released Aug 28, 2018 - 312.63 KB
    Works with firefox 45.0 and later
    * Fix: Badge not set on some loads
    * Fix: Typo and not localized string
    * New: Add fr locale
    * Some code optimizations

    Source code released under Mozilla Public License 2.0

    Download file

  • Version 3.1.7

    Released Aug 23, 2018 - 311.14 KB
    Works with firefox 45.0 and later
    * Fix: Badge not updated in some situations
    * Fix: Container tabs ignored
    * New: Add zh_CN locale (thanks yfdyh000)
    * Some code optimizations

    Source code released under Mozilla Public License 2.0

    Download file

  • Version 3.1.6

    Released Aug 20, 2018 - 308.89 KB
    Works with firefox 45.0 and later
    * Fix: Options were not saved in some situations
    * Fix: Filter "ignore hash part" didn't work with "ignore search part" enabled
    * Fix: The new tab and the existing tab were both closed in some situations

    * New: Add an option to change the badge background color

    * Some code optimizations

    Source code released under Mozilla Public License 2.0

    Download file