Intelligent Memory Manager is a tab-sleeping extension. It does not collect, transmit, sell, or share any data with any external server, developer, or third party. Everything it reads or stores stays on your device, inside your browser's own local storage, for as long as it's needed to restore your tabs the way you left them.
Data ledger
Every value below is written to your browser's local extension storage only. None of it leaves your device.
| Data | Purpose | Storage key | Location |
|---|---|---|---|
| Tab metadata URL, pinned / audible / active state, last-accessed time |
Decide which tabs are safe to sleep and which are protected | lastAccessTimes |
on-device |
| Interaction signals timing and frequency of typing, clicks, scroll, focus — never content |
Detect when a tab is actively in use so it isn't discarded prematurely | — (in-memory only) | on-device |
| Scroll position & form field values | Restore your place and unsaved input when a slept tab reopens | tabState_* |
on-device |
| Per-domain idle averages | Learn how long tabs from a site typically sit idle, to improve eviction timing | domainIdleHistory |
on-device |
| Discard counts & memory saved | Show usage statistics in the popup | analyticsData |
on-device |
| Optional tab-lock PIN | Let you optionally lock individual tabs | passwordLock (salted hash only) |
on-device |
Tab-state entries are deleted automatically once a slept tab is restored.
What's never captured
- Passwords and sensitive inputs — fields of type
password, plus card numbers, CVC/CVV codes, one-time codes, and similarly sensitive fields, are filtered out before capture and never written to storage, even locally. - Keystroke content — only the fact and timing of interaction is noted (e.g. "typing detected at 2:03pm"), never what was typed, aside from the non-sensitive form values listed in the ledger above.
- Browsing history — nothing is recorded beyond the current state of tabs you have open.
Retention & deletion
Data persists in local browser storage until you close the relevant tab (restore state is deleted automatically once used) or uninstall the extension, which clears all extension storage per standard browser behavior. Stored data can also be cleared manually from the extension's settings, where available.
Changes to this policy
If this policy changes, the effective date at the top of this page will be revised and the new version posted at this same URL.
Contact
Questions about this policy or the extension's data handling can be sent to: