Suspend tabs without trusting a stranger

The Great Suspender died in 2021, sold to an unknown buyer and removed as malware. UtilEngine puts tabs to sleep with Chrome's own discard mechanism, on a board that also saves and snapshots your windows, from a developer who makes money by selling the software.

Get it for $49

Side by side

One suspended tabs on a timer. The other makes suspension something you control, with backup underneath.

The Great SuspenderUtilEngine
StatusThe Great SuspenderRemoved from the Web Store in 2021, remotely disabledUtilEngineActively developed
How tabs suspendThe Great SuspenderOn an idle timer, or by handUtilEngineOn demand, per tab or per whole window
Suspension mechanismThe Great SuspenderReplaced pages with its own placeholder pageUtilEngineChrome's native discard, tabs keep their real URL
If the extension disappearsThe Great SuspenderSuspended tabs closed, URLs left only in historyUtilEngineNothing changes, sleeping tabs are normal Chrome tabs
See what's asleepThe Great SuspenderGrey placeholder pagesUtilEngineA live board that marks sleeping tabs, including Chrome's own
Tab backupThe Great SuspenderA session manager inside the extension, gone when it was removedUtilEngineSessions that sync across devices, plus hourly snapshots
Business modelThe Great SuspenderFree, then sold to an unknown buyer who added trackingUtilEngine$49 once. The software is the product.
ExtrasThe Great SuspenderSession manager, site whitelist, shortcutsUtilEngine50+ commands. Sessions, calculator, JSON, AI with your key.

Based on public reporting of The Great Suspender's removal in February 2021 and its Web Store history. If all you want is free automatic suspension, Chrome's built-in Memory Saver or the open-source Auto Tab Discard may be all you need.

What its story should teach us

The Great Suspender didn't fail as software. It failed as a custody arrangement. Millions of people handed every postponed tab to a free extension, the extension changed hands quietly, and the new owner shipped tracking code. When Google pulled the plug, every tab it had suspended closed, and their real addresses survived only in Chrome's history. People lost work twice, once to the malware scare and once to the removal.

The technical lesson is about the placeholder pages. UtilEngine's sleep uses the discard mechanism built into Chrome itself, the same one Memory Saver uses. A sleeping tab keeps its real URL in the tab strip and needs nothing from us to wake up. Remove the extension tomorrow and every sleeping tab is still just a tab.

The custody lesson is about incentives and backup. UtilEngine is a one-time purchase, so there is no reason for your data to be the product, and your tabs never ride on the extension anyway. Windows can be saved as sessions, snapshots run every hour, and saved sessions sync with your account. Suspension in 2026 shouldn't be an act of faith in an extension. It should be a convenience sitting on top of a backup.

How it works in UtilEngine

Sleep for the tabs you keep, sessions and snapshots for the windows you close.

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Snapshots run on their own, every hour

Sleep the tab, keep the tab

Sleep one tab or a whole window from the Session Manager. Chrome's own discard frees the memory, and every tab keeps its real address and its place in the window. Click one and it wakes.

Switching, answered

What happened to The Great Suspender?

The original developer sold it in 2020 to an unknown buyer, who shipped updates with tracking and remote code execution. Google removed it from the Chrome Web Store in February 2021 and remotely disabled it, which closed every tab it had suspended. Their real addresses survived only in Chrome's history.

Is The Great Suspender safe to install now?

The original is gone and should stay gone. The Marvellous Suspender is a community fork of the last clean version, open source and volunteer maintained, if you want the closest thing to the original.

Does UtilEngine suspend tabs automatically?

No, and that's deliberate. Chrome's built-in Memory Saver already suspends idle tabs automatically. UtilEngine adds what Chrome doesn't have, sleep on demand for a tab or a whole window, and one board that shows everything that's asleep, including tabs Memory Saver discarded.

What happens to sleeping tabs if I remove UtilEngine?

Nothing. Sleep uses Chrome's own discard mechanism, so a sleeping tab is a normal tab with its real address. There is no placeholder page and nothing that depends on the extension. That failure mode is exactly how The Great Suspender burned people.

Do sleeping tabs lose anything?

The page reloads when it wakes, so unsaved form input may be lost. The tab itself, its address, and its spot in the window all stay. For anything you'd hate to lose, save the window as a session first.

Are there free alternatives?

Yes. Chrome's Memory Saver is built in and covers automatic suspension. Auto Tab Discard is open source and adds a configurable idle timer. UtilEngine is for people who also want manual control, session backup, and the rest of the launcher.