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The Marvellous Suspender

The Marvellous Suspender is a free browser extension that suspends inactive tabs to release the memory and CPU resources they use.

Place
#20 of 27
Score
5.7
The Marvellous Suspender's website

What The Marvellous Suspender is

The Marvellous Suspender is a free browser extension that suspends inactive tabs to release the memory and CPU resources they use. Suspended tabs can appear as a screenshot, a blurred view, or text only, and the extension can recover them after a browser crash or restart. Power Mode automatically suspends tabs when the battery falls below a threshold you choose. Session Management records windows, tabs, tab groups, and pinned state locally, with current, recent, and saved sessions plus migration. Optional scheduled backups can be saved locally or to Google Drive; users set the interval and can keep 2 to 50 backups per device. Drive backups use an app-specific hidden folder and do not pass through Marvellous Codeworks servers. The maker says settings and session data remain in the browser profile and that TMS does not collect, transmit, or sell user data. Chrome 110 or later is required. The maker reports active users on Vivaldi, Brave, and Microsoft Edge, though installation and policy support vary by browser. Code is available under the GNU General Public License v2.

Good

  • Suspends inactive tabs to free memory and CPU.
  • Offers three suspended-tab appearances.
  • Can recover tabs after crashes or restarts.
  • Session records include tab groups and pinned state.
  • Scheduled backups can use local storage or Google Drive.

Watch out

  • Requires Chrome 110 or later.
  • Installation and policy support vary by browser.
  • No dedicated commercial support channel is listed.

Who it suits

It suits people who keep many tabs open and want to reduce Chrome’s memory use while preserving sessions. It is also relevant to users who want local session records or optional scheduled backups.

Verdict

The Marvellous Suspender combines tab suspension with session recovery and configurable session backups. Check browser compatibility first, especially if you use a browser other than Chrome.

Plans and prices

From The Marvellous Suspender's own pricing page, checked 8 Oct 2026.

All about pricing
PlanPriceWhat it gives you
FreeFreeFree of charge; no ads; no user data collection

The facts

Each one read from The Marvellous Suspender's own pages, with the date it was checked.

What it does

Backups
Optional scheduled session backups can be saved locally or to Google Drive, with a configurable interval and a limit of 2 to 50 backups per device.checked 8 Oct 2026
Battery mode
Power Mode automatically suspends tabs when the battery drops below a chosen threshold.checked 8 Oct 2026
Google Drive scope
Drive backups use the narrow drive.appdata scope to access the app-specific hidden folder, and backup files do not pass through Marvellous Codeworks servers.checked 8 Oct 2026
License
The code is publicly available under the GNU General Public License v2.checked 8 Oct 2026
Notable limit
The extension requires Chrome 110 or later because it uses Manifest V3.checked 8 Oct 2026
Optional permissions
Downloads and Google identity permissions are requested only when the user enables local backups or connects Google Drive.checked 8 Oct 2026
Privacy
The maker says TMS does not collect, transmit, or sell user data; settings and session data are stored locally in the browser profile.checked 8 Oct 2026
Purpose
The extension suspends inactive tabs to free the memory and CPU resources they were using.checked 8 Oct 2026
Session management
Session Management records open windows, tabs, tab groups, and pinned state locally, and includes current, recent, and saved sessions plus migration.checked 8 Oct 2026
Session recovery
The extension can recover suspended tabs after a browser crash or restart.checked 8 Oct 2026
Support
Users can seek help through the project’s GitHub repositories; the maker says there is no dedicated commercial support channel.checked 8 Oct 2026
Suspended tabs
Users can choose screenshot, blurred, or text-only appearances for suspended tabs.checked 8 Oct 2026
Target users
The project is intended for people who keep multiple browser tabs open and want to reduce Chrome’s memory use.checked 8 Oct 2026

Where it runs

Supported browsers
Chrome 110 or later is required; the maker reports active users on Vivaldi, Brave, and Microsoft Edge, with installation and policy support varying by browser.checked 8 Oct 2026

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