One Tab Only

by HU MINGCHE · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Switch to an existing tab when the same URL is opened, instead of keeping a duplicate.

Users

776

+2 in 30 days

Rating

5.0 / 5

+5.00 in 30 days

Ratings

+1 in 30 days

Store rank

#36K

#30K among extensions

Version

0.5.3

updated 12 Aug 2026

Users

monthly, 3 months

Latest, 16 Oct 2026: 776 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 16 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 One Tab Only

When working, it is common to have many tabs open, making it difficult to remember whether a specific page is already active. "Only One Tab" checks existing tabs whenever a URL is opened in a new tab; if it detects a matching URL, it navigates directly to the existing page and closes the newly created duplicate tab.