Prevent Duplicate Tabs - Open Source icon

Prevent Duplicate Tabs - Open Source

by Kunal Jaykam · Functionality & UI
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

DUPLICATE TAB DETECTOR: This open source extension helps manage your browsing by alerting you when you’re about to open a tab…

Users
13
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#177K
#148K among extensions
Version
1.1
updated 6 Mar 2026

Users

monthly, 3 years
0714Dec 2023Jun 2025Oct 2026
Latest, 16 Oct 2026: 13 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Dec 2023Jun 2025Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Prevent Duplicate Tabs - Open Source

DUPLICATE TAB DETECTOR: This open source extension helps manage your browsing by alerting you when you’re about to open a tab that’s already open. Originally inspired by my habit of opening the same links from emails or Slack, it efficiently closes new duplicate tabs, keeping the browser tidy and uncluttered.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+1+8.3%00.00
6 months+7+116.7%00.00
1 year+8+160.0%00.00

Chrome Web Store search rankings

Where Prevent Duplicate Tabs - Open Source appears when people search the store, with the 30 day change
Search phrasePosition30 days
prevent#36+7

Version history

2 versions recorded
1.16 Mar 2026
1.02 Dec 2023

Details

Category
Functionality & UI
First seen
2 Dec 2023
Size
523 KB
Languages
en
Pricing
Free
Extension ID
ilnmljeceddiodghbgohocfbmlbmagga

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabs

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