KillTab

by AI Northstar Tech · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 17 Oct 2026

Crash the active tab renderer and show its current CPU/heap usage.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#321K

#255K among extensions

Version

0.1.2

updated 22 Jul 2026

Users

monthly, 3 months

Latest, 17 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 17 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 KillTab

KillTab helps diagnose and recover from a heavy or stuck browser tab. • See the active tab's JavaScript heap usage in the toolbar badge. • See heap and CPU activity in the toolbar tooltip. • Click the toolbar icon to crash the active tab's renderer without closing the tab. • Use the page right-click menu for the same action. • Refresh the tab whenever you want to load it again. KillTab uses Chrome's debugger API only to read performance metrics from the active tab and send the Page.crash command after an explicit user action. It does not read page text, make network requests, run analytics, track browsing, or store settings. The all-sites permission lets the resource badge sample whichever regular website is currently active. Restricted browser pages remain inaccessible.