Smart Prevent Duplicate Tabs

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.

Smart Prevent Duplicate Tabs is a powerful Chrome extension designed to streamline your browsing by automatically preventing the creation of duplicate tabs with the same URLs. It intelligently closes repeated tabs based on customizable settings, such as whether to consider query strings or hashes, which tabs to close first (oldest or newest), and whether to protect your currently active tab.

The extension supports incognito mode with isolated tab management and features an easy toggle to activate or disable the add-on without accessing the extensions panel. Users can specify URL exceptions to preserve important tabs. It operates seamlessly by listening to various Chrome API events like tab creation, updates, replacements, and attachments, ensuring your browser remains organized and efficient.

Manifest V2 Add-on Productivity Utilities
By:
Guilherme Nascimento
Daily users:
303 1
Rating:
4.00
(19)
Version:
0.7.10 Last updated: 2023-04-05
Version code:
5548133
Creation date:
2018-01-08
Risk:
Moderate risk impact Low risk likelihood
Permissions:
  • tabs
  • storage
Size:
46.59KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
a day ago

User reviews

Works great as of 6/5/2025.
by ro*****, 2025-06-06

by 远离*****, 2025-03-31

by 敬念*****, 2025-02-28
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Smart Prevent Duplicate Tabs requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Smart Prevent Duplicate Tabs has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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