Prevents automatic creation of new tabs or repeating tabs when two or more tabs have the same addresses The process of closing repeated tabs is automatic based on the settings that you can determine within the extension/add-on, it is also possible to quickly disable and activate the add-on without having to access the extensions panel. You can add a host or URL to specify as an exception so that the add-on doesn't close repeating tabs. The extension/add-on has support for closing repeated tabs in incognito/incognito mode, but this works in isolation and will not share any information from incognito mode with normal mode, they are completely separate actions. Among the settings you can choose to consider or disregard querystring and hashes in URLs as a factor to differentiate them. It is also possible to configure if you prefer to close the oldest tabs and if you want to prevent the active tab (currently visible) from being closed. Closing tabs works based on Chrome API events and you can disable or re-enable such events within the extension/add-on:

Start event - Close repeated tabs when your browser is launched
Update event - Close repeated tabs when a tab is updated, more details in tabs.onUpdated.addListener
Create event - Close repeated tabs when a new tab is created, more details in tabs.onCreated.addListener
Replace event - Close repeated tabs when a tab is replaced with another tab due to prerendering or instant, more details in tabs.onReplaced.addListener
Attach event - Close repeated tabs when a tab is attached to another window or detached (creating a new window), more details in tabs.onAttached.addListener
Datachange event - Close repeated tabs when you change "sort order", "URLs", "others" and "events" configurations from extension

Version	Download	Size	Download count	Timestamp
0.7.10	Sign in to download	40.94K	5	2023-04-03
0.7.7	Upgrade to download older files	39.10K	5	2022-02-09
0.7.6	Upgrade to download older files	38.65K	7	2021-04-06
0.7.5	Upgrade to download older files	38.63K	7	2021-04-02
0.7.4	Upgrade to download older files	30.45K	7	2021-03-30
0.7.2	Upgrade to download older files	29.16K	7	2020-12-25
0.7.1	Upgrade to download older files	28.39K	7	2020-09-29
0.6.3	Upgrade to download older files	18.63K	7	2020-09-13

Prevent Duplicate Tabs

Prevent duplicate tabs

All available versions

How to install Prevent Duplicate Tabs from a CRX file

Option 1: The easy way (for Windows users only)

Option 2: Advanced method

How to install Prevent Duplicate Tabs from a ZIP file

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