Unknown author · Privacy & Security
4 items
Auto-delete cookies, cache & permissions (camera, mic, location) when a site's last tab closes. Privacy cleaner with a whitelist. Custodian automatically cleans up a website the moment you're finished with it. When you close the **last tab** for a site, Custodian waits through a short, cancellable grace period, then removes the site's cookies, storage, cache, and resets any permissions it was granted. No manual cleaning. No scheduled jobs. No remembering to clear browsing data. ### What Custodian clears * Cookies * localStorage & sessionStorage * IndexedDB * Cache Storage * Service Workers * WebSQL (where supported) * Site permissions, including camera, microphone, location, notifications, clipboard, automatic downloads, sound, and pop-ups Custodian only cleans a site after its **last open tab** has been closed, so it never interrupts websites you're actively using. ### Whitelist & Greylist Keep selected sites untouched by adding them to your whitelist or greylist. Perfect for email, banking, work accounts, or anywhere you want to stay signed in. Prefer the opposite behavior? Enable **Shield Mode** to clean only the sites you explicitly choose instead of cleaning everything by default. ### Isolate This Tab Need a page to stay open without making normal network requests? **Isolate This Tab** lets you temporarily block a tab's standard network traffic while leaving the page itself open. ### Activity Log & Receipts Every cleanup generates a detailed receipt showing exactly what was removed and which permissions were reset. Review recent activity from the popup or browse the full history whenever you need it. Custodian can also suggest frequently visited sites for your whitelist using simple local pattern matching. Suggestions are never applied automatically—you stay in control. ### Privacy by Design Custodian works entirely on your device. * No accounts * No sign-in * No analytics * No telemetry * No remote configuration * No network requests Everything stays in your browser. Nothing is sent anywhere.
Jul 10, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.