Duplicate Tab Prevention - No Tab Twice

by Angesn · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Prevents duplicate tabs by switching to an already-open matching tab and closing the extra copy.

Users

+1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#157K

#131K among extensions

Version

1.0.2

updated 11 Jul 2026

Users

monthly, 4 months

Latest, 21 Oct 2026: 19 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 21 Oct 2026: 1 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 Duplicate Tab Prevention - No Tab Twice

No Tab Twice - Duplicate D helps prevent duplicate browser tabs. When you open a link that matches a page already open in Chrome, the extension closes the new duplicate tab and takes you back to the existing tab. It is useful for everyday work links such as Jira tickets, pull requests, documentation pages, email links, Slack links, and normal websites. Features: - Detects duplicate tabs automatically. - Switches to the existing matching tab. - Closes the new duplicate tab. - Provides a popup button to check all open tabs. - Lets you pause duplicate detection. - Lets you allow duplicates for selected URL patterns using * wildcards. - Runs locally in Chrome. Privacy: The extension compares open tab URLs locally in Chrome. It does not request the history permission, does not use chrome.history, and does not send URLs to a server. Settings are stored locally using Chrome extension storage. No account is required.