The Marvellous Suspender automatically suspends tabs that haven't been used for a configurable period, freeing up memory and CPU without closing them. It's a privacy-focused fork of the original Great Suspender (which was removed for containing tracking code). Suspended tabs show a placeholder page and reload instantly when clicked. It can save up to 80% of browser memory, making it essential for users on resource-limited machines who keep many tabs open.

Key Features

Automatic tab suspension

Configurable idle timeout

Whitelist for important tabs

Session saving and restoration

No tracking or data collection

Open source (Great Suspender fork)

Up to 80% memory savings

Pinned tab protection

Pricing

Free

All features included
Open source
No tracking
Chrome support

Featured In

7 Best Browser Tab Management Extensions That Actually Work (2026)

Best for users on resource-limited machines who need to keep many tabs accessible without the memory penalty — the go-to performance companion for any tab setup.

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