Slumber

by stillwareextensions · Tools

Manifest V3 in_app

View in Chrome Web Store Data as of 18 Oct 2026

Free up RAM by automatically suspending inactive tabs.

Users

+2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#265K

#221K among extensions

Version

1.0.0

updated 8 May 2026

Users

monthly, 5 months

Latest, 18 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 18 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 Slumber

Slumber automatically suspends inactive tabs to free up RAM and keep Chrome running fast, especially if you keep dozens of tabs open at once. How it works: When a tab hasn't been viewed for a set amount of time, Slumber puts it to sleep. The tab stays in your browser but uses virtually no memory. Click it any time to instantly wake it back up. Features - Auto-suspend inactive tabs after 5, 10, 20, 30, or 60 minutes - Suspend all tabs instantly with one click - Keyboard shortcut (Ctrl+Shift+S / Cmd+Shift+S) to suspend the current tab - Whitelist: keep important tabs like Gmail or Spotify always awake - See exactly how many tabs are suspended and how much RAM is saved - Clean suspended page shows the original tab title and URL Privacy Everything runs locally on your device. No browsing data, URLs, or tab content is ever sent anywhere. No account required. Why Slumber? The most popular tab suspender extensions were abandoned or caught injecting malware. Slumber is actively maintained, fully open about what it does, and built on Chrome's latest Manifest V3 platform.