Prevent Duplicate Tabs
Prevent duplicate tabs from being opened
As of June 2026, Prevent Duplicate Tabs has 1,000 users and a 5.00/5 rating from 3 reviews in the Productivity category.
Usersup 266.3 percent+266.3%
1.0K
1,000
Ratingno change0%
5.00
3 reviews
Reviewsup 200.0 percent+200.0%
3
Version
1.7.0
Manifest V3
90-day change · In the last 90 days this extension 3 version updates, changed permissions.
History
11 snapshotsTracking since Apr 6, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 6, 2026 | 273 | 5.00 | 1 | 1.4.4 |
| Apr 18, 2026 | 275 | 5.00 | 1 | 1.5.0 |
| Apr 23, 2026 | 418 | 5.00 | 1 | 1.5.0 |
| Apr 28, 2026 | 466 | 5.00 | 1 | 1.5.0 |
| May 8, 2026 | 396 | 5.00 | 1 | 1.5.0 |
| May 12, 2026 | 683 | 5.00 | 1 | 1.5.0 |
| May 15, 2026 | 423 | 5.00 | 1 | 1.5.0 |
| May 20, 2026 | 443 | 5.00 | 1 | 1.5.0 |
| May 24, 2026 | 449 | 5.00 | 1 | 1.6.0 |
| May 29, 2026 | 984 | 5.00 | 1 | 1.7.0 |
| Jun 13, 2026 | 1.0K | 5.00 | 2 | 1.7.0 |
| Now | 1.0K | 5.00 | 3 | 1.7.0 |
Changelog
- May 24, 2026description
Prevent Duplicate Tabs is a Chrome extension that stops duplicate tabs before they clutter your browser. If you open the same link twice, it detects the match and closes the extra tab or switches you to the tab you already have open—so you save memory, stay organized, and stop hunting through identical pages. Install this duplicate tab blocker to automatically prevent duplicate tabs on every site, with rules you control. No account, no sign-in. All settings and your local “duplicates prevented” count stay on your device. ──────────────────────────────────────────────────────────────────────────────── WHY USERS SEARCH FOR A DUPLICATE TAB EXTENSION ──────────────────────────────────────────────────────────────────────────────── Too many tabs slow Chrome down. Opening the same URL in multiple tabs wastes RAM, creates tab clutter, and makes it easy to lose your place. Whether you research, code, shop, or manage email, a tab manager that blocks duplicate tabs keeps one copy of each page unless you choose otherwise. This extension is built for anyone who asks: “How do I stop Chrome from opening the same tab again?” or “How do I close duplicate tabs automatically?” ──────────────────────────────────────────────────────────────────────────────── HOW DUPLICATE TAB PREVENTION WORKS ──────────────────────────────────────────────────────────────────────────────── When a new tab loads, Prevent Duplicate Tabs compares its URL to your open tabs (in all windows or only the current window—you decide). If it finds a duplicate, it runs your chosen action immediately. Set a global default, then override behavior per domain—for example, block duplicates on most sites but allow multiple Gmail or Google Docs tabs where you need them. ──────────────────────────────────────────────────────────────────────────────── KEY FEATURES ──────────────────────────────────────────────────────────────────────────────── Automatic duplicate detection • Compares new tab URLs to open tabs—no manual cleanup. Four duplicate-tab actions • Close the new duplicate and stay on your current tab. • Close the old duplicate and stay where you are. • Close the new tab and switch to the existing tab (focuses the right window). • Close the old tab and switch to the new one. Scope and URL matching • All windows or current window only—control where duplicates are checked. • Ignore URL parameters—treat pages with different query strings (?id=1 vs ?id=2) as the same URL when you want stricter matching. Open in new tab (allow duplicate) • Open in new tab (allow duplicate) – Right-click a hyperlink and choose this context menu option to open that URL in a new tab without duplicate prevention, even when your rules would normally block or merge the duplicate. Exceptions and per-site rules • Exceptions list—allow duplicate tabs for specific URLs or entire domains. • Site-specific rules—set duplicate action and “ignore URL parameters” per domain from the full options page. • Popup shortcuts—enable or disable the extension, or allow duplicates for this page or this domain from the toolbar icon. Control and local stats • One-click on/off in the popup. • See open tab count and how many duplicates were prevented—stored locally only. • Options page for global defaults, exceptions, and site rules (right-click the extension icon → Options). ──────────────────────────────────────────────────────────────────────────────── WHO IT IS FOR ──────────────────────────────────────────────────────────────────────────────── • Power users with dozens of tabs who want less tab clutter. • Developers and researchers who reopen the same documentation or articles. • Remote workers juggling email, dashboards, and docs in Chrome. • Anyone searching for: prevent duplicate tabs, duplicate tab blocker, close duplicate tabs, stop duplicate tabs Chrome, tab organizer, or browser productivity extension. ──────────────────────────────────────────────────────────────────────────────── BENEFITS ──────────────────────────────────────────────────────────────────────────────── • Fewer duplicate tabs → less RAM use and a snappier browser. • Less confusion from multiple copies of the same page. • Flexible rules—strict globally, relaxed on sites that need multiple tabs. • Open a deliberate duplicate via the right-click menu when you need two copies. • Private by design—no analytics, no external servers for your browsing data. ──────────────────────────────────────────────────────────────────────────────── PRIVACY AND PERMISSIONS ──────────────────────────────────────────────────────────────────────────────── Uses tabs (read URLs, close or switch tabs, open from context menu), storage (settings and local stats), windows (focus the correct window and close empty windows after cleanup), and contextMenus (“Open in new tab (allow duplicate)” on hyperlinks—no broad host permissions or content scripts on web pages). Popup and options UI load the Poppins font from Google Fonts for display only. See the extension privacy policy for details. ──────────────────────────────────────────────────────────────────────────────── GET STARTED ──────────────────────────────────────────────────────────────────────────────── Click Add to Chrome, pin the icon, and choose your default duplicate action in the popup. In seconds you can stop accidental duplicate tabs and keep Chrome focused on the pages that matter.
Prevent Duplicate Tabs is a Chrome extension that stops duplicate tabs before they clutter your browser. If you open the same link twice, it detects the match and closes the extra tab or switches you to the tab you already have open—so you save memory, stay organized, and stop hunting through identical pages. Install this duplicate tab blocker to automatically prevent duplicate tabs on all websites or only on sites you list, with rules you control. No account, no sign-in. All settings and your local “duplicates prevented” count stay on your device. ──────────────────────────────────────────────────────────────────────────────── WHY USERS SEARCH FOR A DUPLICATE TAB EXTENSION ──────────────────────────────────────────────────────────────────────────────── Too many tabs slow Chrome down. Opening the same URL in multiple tabs wastes RAM, creates tab clutter, and makes it easy to lose your place. Whether you research, code, shop, or manage email, a tab manager that blocks duplicate tabs keeps one copy of each page unless you choose otherwise. This extension is built for anyone who asks: “How do I stop Chrome from opening the same tab again?” or “How do I close duplicate tabs automatically?” ──────────────────────────────────────────────────────────────────────────────── HOW DUPLICATE TAB PREVENTION WORKS ──────────────────────────────────────────────────────────────────────────────── When a new tab loads, Prevent Duplicate Tabs compares its URL to your open tabs (in all windows or only the current window—you decide). If it finds a duplicate, it runs your chosen action immediately. Set a global default, then override behavior per domain—for example, block duplicates on most sites but allow multiple Gmail or Google Docs tabs where you need them. Choose where prevention applies: block duplicates on all websites (with an exceptions list), or only on sites you add to a monitored list. When you turn the extension on or change scope or lists, it also scans tabs you already have open and resolves duplicates that match your rules. ──────────────────────────────────────────────────────────────────────────────── KEY FEATURES ──────────────────────────────────────────────────────────────────────────────── Automatic duplicate detection • Compares new tab URLs to open tabs—no manual cleanup. Four duplicate-tab actions • Close the new duplicate and stay on your current tab. • Close the old duplicate and stay where you are. • Close the new tab and switch to the existing tab (focuses the right window). • Close the old tab and switch to the new one. Scope and URL matching • All windows or current window only—control where duplicates are checked. • Ignore URL parameters—treat pages with different query strings (?id=1 vs ?id=2) as the same URL when you want stricter matching. Open in new tab (allow duplicate) • Open in new tab (allow duplicate) – Right-click a hyperlink and choose this context menu option to open that URL in a new tab without duplicate prevention, even when your rules would normally block or merge the duplicate. Prevention scope and site lists • All websites—prevent duplicates everywhere except URLs or domains on your exceptions list. • Listed sites only—prevent duplicates only on domains or pages you add to the monitored list; skip individual pages on a monitored domain when needed. • One unified list on the options page—shows exceptions or monitored sites depending on your scope; search, add, edit, and remove entries. • Current-domain controls in the popup and options—toggle monitoring or exceptions for this page or this domain without typing URLs. Per-site rules and popup shortcuts • Site-specific rules—set duplicate action and “ignore URL parameters” per domain from the full options page. • Popup shortcuts—enable or disable the extension, choose prevention scope, and adjust this page or this domain from the toolbar icon. Control and local stats • One-click on/off in the popup. • See open tab count and how many duplicates were prevented—stored locally only. • Options page for prevention scope, global defaults, site lists, and per-domain rules (right-click the extension icon → Options). ──────────────────────────────────────────────────────────────────────────────── WHO IT IS FOR ──────────────────────────────────────────────────────────────────────────────── • Power users with dozens of tabs who want less tab clutter. • Developers and researchers who reopen the same documentation or articles. • Remote workers juggling email, dashboards, and docs in Chrome. • Anyone searching for: prevent duplicate tabs, duplicate tab blocker, close duplicate tabs, stop duplicate tabs Chrome, tab organizer, or browser productivity extension. ──────────────────────────────────────────────────────────────────────────────── BENEFITS ──────────────────────────────────────────────────────────────────────────────── • Fewer duplicate tabs → less RAM use and a snappier browser. • Less confusion from multiple copies of the same page. • Flexible rules—strict globally, relaxed on sites that need multiple tabs. • Open a deliberate duplicate via the right-click menu when you need two copies. • Private by design—no analytics, no external servers for your browsing data. ──────────────────────────────────────────────────────────────────────────────── PRIVACY AND PERMISSIONS ──────────────────────────────────────────────────────────────────────────────── Uses tabs (read URLs, close or switch tabs, open from context menu), storage (settings and local stats), windows (focus the correct window and close empty windows after cleanup), and contextMenus (“Open in new tab (allow duplicate)” on hyperlinks—no broad host permissions or content scripts on web pages). Popup and options UI load the Poppins font from Google Fonts for display only. See the extension privacy policy for details. ──────────────────────────────────────────────────────────────────────────────── GET STARTED ──────────────────────────────────────────────────────────────────────────────── Click Add to Chrome, pin the icon, and choose your default duplicate action in the popup. In seconds you can stop accidental duplicate tabs and keep Chrome focused on the pages that matter.
- May 20, 2026description
Prevent Duplicate Tabs is a Chrome extension that blocks duplicate tabs automatically. If you open a link or URL that’s already open in another tab, it detects the duplicate and either closes it or switches you to the existing tab—so you get fewer tabs, less clutter, and lower memory use. No account, no sign-in; all settings and a local “duplicates prevented” count stay on your device. Why use a duplicate tab blocker? Opening the same page in multiple tabs wastes RAM, slows Chrome, and makes it harder to find the tab you need. A tab manager that prevents duplicate tabs keeps your browser lean: you avoid accidentally opening the same article, doc, or site twice, and you choose what happens when a duplicate is detected—close the new tab, close the old one, or switch to the right tab. Useful for researchers, developers, and anyone who keeps many tabs open. How it works When you open a new tab, the extension compares its URL to your open tabs (across all windows or only the current window—you choose). If it finds a match, it applies your chosen action right away. You can set a default behavior for all sites and override it per domain, so you can allow multiple Gmail tabs but block duplicates everywhere else. Duplicate tab detection and actions • Automatic detection – Compares new tab URLs to open tabs; no manual steps. • Four actions – Close the new duplicate and stay where you are; close the old duplicate and stay; close the new and switch to the existing tab; or close the old and switch to the new. When you switch, the correct window is focused and empty windows are closed. • All windows or current window – Check for duplicates across all Chrome windows or only in the current window. • Ignore URL parameters – Option to treat the same page with different query strings (e.g. ?id=1 vs ?id=2) as one URL, so you can block or allow duplicates based on your workflow. Exceptions and per-site rules • Exceptions list – Allow duplicate tabs for specific URLs or whole domains (e.g. allow multiple Gmail tabs or several docs). • Per-site rules – Set a different duplicate action and “ignore URL parameters” per domain from the options page. • Popup toggles – From the extension icon, turn the extension on or off, or allow duplicates for “this page only” or “this domain only” without opening options. Control and stats • Enable or disable anytime – One toggle in the popup. • Local stats – See how many tabs you have open and how many duplicates were prevented; stored on your device only. • Options page – Full control: default action, scope (all windows or current window), ignore-parameters, exceptions list, and site-specific rules. Right-click the icon → Options. Use cases and benefits • Reduce tab clutter – Stop ending up with dozens of tabs for the same site. • Save memory – Fewer duplicate tabs mean less RAM and a faster browser. • Stay focused – No confusion from multiple copies of the same page. • Different behavior per site – Block duplicates on most sites but allow multiple tabs for email, docs, or tools that need them. • No account – Install and use; all settings stay in your browser. Privacy and permissions The extension uses the tabs permission (to read tab URLs for duplicate detection and to close or switch tabs), storage (to save your settings and local “duplicates prevented” count), and windows (to focus the right window when switching and to close empty windows). It does not read page content, does not send your data to any server, and does not use analytics or tracking. See the extension privacy policy for full details.
Prevent Duplicate Tabs is a Chrome extension that stops duplicate tabs before they clutter your browser. If you open the same link twice, it detects the match and closes the extra tab or switches you to the tab you already have open—so you save memory, stay organized, and stop hunting through identical pages. Install this duplicate tab blocker to automatically prevent duplicate tabs on every site, with rules you control. No account, no sign-in. All settings and your local “duplicates prevented” count stay on your device. ──────────────────────────────────────────────────────────────────────────────── WHY USERS SEARCH FOR A DUPLICATE TAB EXTENSION ──────────────────────────────────────────────────────────────────────────────── Too many tabs slow Chrome down. Opening the same URL in multiple tabs wastes RAM, creates tab clutter, and makes it easy to lose your place. Whether you research, code, shop, or manage email, a tab manager that blocks duplicate tabs keeps one copy of each page unless you choose otherwise. This extension is built for anyone who asks: “How do I stop Chrome from opening the same tab again?” or “How do I close duplicate tabs automatically?” ──────────────────────────────────────────────────────────────────────────────── HOW DUPLICATE TAB PREVENTION WORKS ──────────────────────────────────────────────────────────────────────────────── When a new tab loads, Prevent Duplicate Tabs compares its URL to your open tabs (in all windows or only the current window—you decide). If it finds a duplicate, it runs your chosen action immediately. Set a global default, then override behavior per domain—for example, block duplicates on most sites but allow multiple Gmail or Google Docs tabs where you need them. ──────────────────────────────────────────────────────────────────────────────── KEY FEATURES ──────────────────────────────────────────────────────────────────────────────── Automatic duplicate detection • Compares new tab URLs to open tabs—no manual cleanup. Four duplicate-tab actions • Close the new duplicate and stay on your current tab. • Close the old duplicate and stay where you are. • Close the new tab and switch to the existing tab (focuses the right window). • Close the old tab and switch to the new one. Scope and URL matching • All windows or current window only—control where duplicates are checked. • Ignore URL parameters—treat pages with different query strings (?id=1 vs ?id=2) as the same URL when you want stricter matching. Open in new tab (allow duplicate) • Open in new tab (allow duplicate) – Right-click a hyperlink and choose this context menu option to open that URL in a new tab without duplicate prevention, even when your rules would normally block or merge the duplicate. Exceptions and per-site rules • Exceptions list—allow duplicate tabs for specific URLs or entire domains. • Site-specific rules—set duplicate action and “ignore URL parameters” per domain from the full options page. • Popup shortcuts—enable or disable the extension, or allow duplicates for this page or this domain from the toolbar icon. Control and local stats • One-click on/off in the popup. • See open tab count and how many duplicates were prevented—stored locally only. • Options page for global defaults, exceptions, and site rules (right-click the extension icon → Options). ──────────────────────────────────────────────────────────────────────────────── WHO IT IS FOR ──────────────────────────────────────────────────────────────────────────────── • Power users with dozens of tabs who want less tab clutter. • Developers and researchers who reopen the same documentation or articles. • Remote workers juggling email, dashboards, and docs in Chrome. • Anyone searching for: prevent duplicate tabs, duplicate tab blocker, close duplicate tabs, stop duplicate tabs Chrome, tab organizer, or browser productivity extension. ──────────────────────────────────────────────────────────────────────────────── BENEFITS ──────────────────────────────────────────────────────────────────────────────── • Fewer duplicate tabs → less RAM use and a snappier browser. • Less confusion from multiple copies of the same page. • Flexible rules—strict globally, relaxed on sites that need multiple tabs. • Open a deliberate duplicate via the right-click menu when you need two copies. • Private by design—no analytics, no external servers for your browsing data. ──────────────────────────────────────────────────────────────────────────────── PRIVACY AND PERMISSIONS ──────────────────────────────────────────────────────────────────────────────── Uses tabs (read URLs, close or switch tabs, open from context menu), storage (settings and local stats), windows (focus the correct window and close empty windows after cleanup), and contextMenus (“Open in new tab (allow duplicate)” on hyperlinks—no broad host permissions or content scripts on web pages). Popup and options UI load the Poppins font from Google Fonts for display only. See the extension privacy policy for details. ──────────────────────────────────────────────────────────────────────────────── GET STARTED ──────────────────────────────────────────────────────────────────────────────── Click Add to Chrome, pin the icon, and choose your default duplicate action in the popup. In seconds you can stop accidental duplicate tabs and keep Chrome focused on the pages that matter.
- May 20, 2026permissions
tabs, storage, windows
contextMenus, storage, tabs, windows
Permissions & access
- Permissions
- contextMenusstoragetabswindows
- Host access
- None declared
Screenshots
About
Prevent Duplicate Tabs is a Chrome extension that stops duplicate tabs before they clutter your browser. If you open the same link twice, it detects the match and closes the extra tab or switches you to the tab you already have open—so you save memory, stay organized, and stop hunting through identical pages. Install this duplicate tab blocker to automatically prevent duplicate tabs on all websites or only on sites you list, with rules you control. No account, no sign-in. All settings and your local “duplicates prevented” count stay on your device. ──────────────────────────────────────────────────────────────────────────────── WHY USERS SEARCH FOR A DUPLICATE TAB EXTENSION ──────────────────────────────────────────────────────────────────────────────── Too many tabs slow Chrome down. Opening the same URL in multiple tabs wastes RAM, creates tab clutter, and makes it easy to lose your place. Whether you research, code, shop, or manage email, a tab manager that blocks duplicate tabs keeps one copy of each page unless you choose otherwise. This extension is built for anyone who asks: “How do I stop Chrome from opening the same tab again?” or “How do I close duplicate tabs automatically?” ──────────────────────────────────────────────────────────────────────────────── HOW DUPLICATE TAB PREVENTION WORKS ──────────────────────────────────────────────────────────────────────────────── When a new tab loads, Prevent Duplicate Tabs compares its URL to your open tabs (in all windows or only the current window—you decide). If it finds a duplicate, it runs your chosen action immediately. Set a global default, then override behavior per domain—for example, block duplicates on most sites but allow multiple Gmail or Google Docs tabs where you need them. Choose where prevention applies: block duplicates on all websites (with an exceptions list), or only on sites you add to a monitored list. When you turn the extension on or change scope or lists, it also scans tabs you already have open and resolves duplicates that match your rules. ──────────────────────────────────────────────────────────────────────────────── KEY FEATURES ──────────────────────────────────────────────────────────────────────────────── Automatic duplicate detection • Compares new tab URLs to open tabs—no manual cleanup. Four duplicate-tab actions • Close the new duplicate and stay on your current tab. • Close the old duplicate and stay where you are. • Close the new tab and switch to the existing tab (focuses the right window). • Close the old tab and switch to the new one. Scope and URL matching • All windows or current window only—control where duplicates are checked. • Ignore URL parameters—treat pages with different query strings (?id=1 vs ?id=2) as the same URL when you want stricter matching. Open in new tab (allow duplicate) • Open in new tab (allow duplicate) – Right-click a hyperlink and choose this context menu option to open that URL in a new tab without duplicate prevention, even when your rules would normally block or merge the duplicate. Prevention scope and site lists • All websites—prevent duplicates everywhere except URLs or domains on your exceptions list. • Listed sites only—prevent duplicates only on domains or pages you add to the monitored list; skip individual pages on a monitored domain when needed. • One unified list on the options page—shows exceptions or monitored sites depending on your scope; search, add, edit, and remove entries. • Current-domain controls in the popup and options—toggle monitoring or exceptions for this page or this domain without typing URLs. Per-site rules and popup shortcuts • Site-specific rules—set duplicate action and “ignore URL parameters” per domain from the full options page. • Popup shortcuts—enable or disable the extension, choose prevention scope, and adjust this page or this domain from the toolbar icon. Control and local stats • One-click on/off in the popup. • See open tab count and how many duplicates were prevented—stored locally only. • Options page for prevention scope, global defaults, site lists, and per-domain rules (right-click the extension icon → Options). ──────────────────────────────────────────────────────────────────────────────── WHO IT IS FOR ──────────────────────────────────────────────────────────────────────────────── • Power users with dozens of tabs who want less tab clutter. • Developers and researchers who reopen the same documentation or articles. • Remote workers juggling email, dashboards, and docs in Chrome. • Anyone searching for: prevent duplicate tabs, duplicate tab blocker, close duplicate tabs, stop duplicate tabs Chrome, tab organizer, or browser productivity extension. ──────────────────────────────────────────────────────────────────────────────── BENEFITS ──────────────────────────────────────────────────────────────────────────────── • Fewer duplicate tabs → less RAM use and a snappier browser. • Less confusion from multiple copies of the same page. • Flexible rules—strict globally, relaxed on sites that need multiple tabs. • Open a deliberate duplicate via the right-click menu when you need two copies. • Private by design—no analytics, no external servers for your browsing data. ──────────────────────────────────────────────────────────────────────────────── PRIVACY AND PERMISSIONS ──────────────────────────────────────────────────────────────────────────────── Uses tabs (read URLs, close or switch tabs, open from context menu), storage (settings and local stats), windows (focus the correct window and close empty windows after cleanup), and contextMenus (“Open in new tab (allow duplicate)” on hyperlinks—no broad host permissions or content scripts on web pages). Popup and options UI load the Poppins font from Google Fonts for display only. See the extension privacy policy for details. ──────────────────────────────────────────────────────────────────────────────── GET STARTED ──────────────────────────────────────────────────────────────────────────────── Click Add to Chrome, pin the icon, and choose your default duplicate action in the popup. In seconds you can stop accidental duplicate tabs and keep Chrome focused on the pages that matter.
Technical
- Version
- 1.7.0
- Manifest
- V3
- Size
- 101KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- Yes
Metadata
- ID
- jjnoehggdfcblljkkeijmooameiaiani
- Developer ID
- u575e107a2a26ce274f46d578c2d077f8
- Developer Email
- [email protected]
- Created
- Aug 12, 2025
- Last Updated (Store)
- May 23, 2026
- Last Scraped
- Jun 13, 2026
- Website
- sqtech.dev
- Support URL
- —
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Data sourced from the Chrome Web Store · last verified Jun 13, 2026.