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Close duplicate tabs
Close every extra copy of a page across all your windows and keep one of each. Press ⌘K, type dup and press ↵.
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Step 1
On any page. Ctrl+K on Windows and Linux.
Step 2
Close Duplicate Tabs shows up under Commands.
Step 3
Extra copies close in every window.
Commands
In detail
It makes one pass over all your open tabs. The same address means a duplicate, the first copy stays, and anything it closes can be reopened.
Two tabs are duplicates when their addresses match exactly, character for character. A different part after # or ? makes it a different page, so two sections of the same doc, or a filtered list next to the full one, both stay open.
/edit and /edit#heading=h.2 are different pages, so both stay./pulls and /pulls?q=is%3Aopen are different pages, so both stay.Close Duplicate Tabs looks at the tabs in all your open windows, not only the one you’re in, so a page open in two windows counts as a duplicate too. TabCmdr keeps the first copy it finds and closes the rest.
Duplicates close the same way as any tab you close, so they show up in Recently Closed. Type :r to see them newest first and press ↵ to reopen one, or run Undo Close Tab to bring back the last tab you closed.
Close Duplicate Tabs is one of 47 browser commands. These also clean up your tabs, and each one runs from the same palette.
Closes every tab on one side of the tab you’re on, in the current window. Pinned tabs stay open.
Keeps the tab you’re on and closes the rest of the current window, apart from pinned tabs.
Moves the tabs from your other windows into the one you’re in and closes the windows it emptied.
Unloads the tabs in this window that you aren’t looking at, so they stop using memory. Pinned tabs and the tab you’re on stay loaded, and a suspended tab reloads when you click it.
Puts the tabs in this window in A to Z order by title. Pinned tabs are sorted among themselves and stay at the start.
Mutes every tab in every window in one go. Unmute All Tabs turns the sound back on.
FAQ
More in the documentation.
Press ⌘K on a Mac or Ctrl+K on Windows and Linux, type dup, and press Enter on Close Duplicate Tabs. TabCmdr closes every extra copy of a page across all your windows and tells you how many it closed.
TabCmdr keeps the first copy it finds as it goes through your windows and closes the later ones. That can include the tab you’re on. In a single window, a pinned tab comes first, so it’s the copy that stays.
Yes. It checks every open window at once. To close tabs in only the current window, use Close Tabs to the Left, Close Tabs to the Right or Close Other Tabs.
No. Tabs count as duplicates only when their addresses match exactly, including everything after # or ?. Two sections of the same document stay open.
Yes. Closed duplicates go to Recently Closed. Type :r to see them newest first and press Enter to reopen one, or run Undo Close Tab to bring back the last tab you closed. Both need the closed tabs permission, which you turn on in settings.
Yes. TabCmdr runs in Chrome, Edge, Brave, Arc, Vivaldi, Opera and other Chromium-based browsers, and installs from the Chrome Web Store.
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