Privacy at JustBlock

What the extension stores

Chrome storage may hold enabled filter packs, your trusted-site list, Max Clean category and website preferences, Focus timers and schedules, muted topics, custom block and mask selectors saved by hostname and page path, a random installation ID and secret, and a cached subscription status. These settings support filtering, focus sessions and the areas you choose to hide or cover. Mask rules store selectors, labels and scope, not the selected private text.

Browsing and page processing

JustBlock and Max Clean may read page structure locally to apply enabled filtering, Popup Guard, cleanup, Focus Mode, saved hiding rules and privacy masks. Page URLs, page contents and browsing history are not sent to JustBlock's billing service or Stripe by these features.

JustBlock does not sell browsing activity, page contents or extension data, and does not use this information for personalized advertising.

What happens when you purchase or restore Max Clean

Stripe hosts Checkout and processes payment, contact and billing information under Stripe's own privacy terms. The JustBlock billing service stores limited subscription information needed to provide Max Clean, such as Stripe customer and subscription identifiers, price, status, billing-period information, encrypted restore codes and random browser installation identifiers. JustBlock does not receive full card numbers.

When you use a purchase, restore or subscription feature, the extension may request access to billing.justblock.org. It can then send a random installation ID and secret to check or activate access. A restore code is sent only when you choose to enter one. The service returns subscription status and related entitlement information.

Service providers

Stripe processes subscription payments and billing information. Stripe receives the information needed to complete and manage a transaction under its own privacy terms.

Brevo is used for transactional email delivery related to purchases, activation and subscription servicing. Brevo may process the customer's email address and limited purchase or subscription information necessary to deliver those messages.

Infrastructure and hosting providers may process limited technical information, such as IP addresses, request metadata and security logs, as necessary to operate, secure and troubleshoot the service.

Privacy masks and screenshots

Masks visually cover selected page elements. You choose the areas to cover; this feature does not automatically identify personal information. The underlying website data remains available to the website and developer tools. Clean screenshots capture the visible page and paint selected visible mask areas into the final PNG as solid redactions. Processing happens locally; this feature does not upload page images to JustBlock.

The unredacted capture is processed in memory. Only the final redacted image is temporarily passed to the review page. That temporary copy is removed when the review page loads, or expires after ten minutes if it is not opened. A PNG saved by you remains wherever you choose to save it.

Chrome permissions

• Request-filter permissions apply bundled URL and domain rules.
• Storage keeps your preferences, site choices and activation status.
• Website access lets Popup Guard and, when enabled, Max Clean operate on pages you open.
• Access to billing.justblock.org is used for purchase, restore and subscription functions. Where Chrome presents this as optional access, it is requested when you use a feature that needs the billing service.

Chrome Web Store Limited Use

JustBlock's use of information received from Chrome APIs complies with the Chrome Web Store User Data Policy, including the Limited Use requirements. Data obtained through Chrome APIs is used only to provide or improve JustBlock's user-facing features. It is not sold, used for personalized advertising, transferred to advertising networks or data brokers, or made available for routine human review except where necessary for security, abuse prevention, support, legal compliance, or with the user's affirmative consent.

Retention and requests

Local extension settings remain in Chrome storage until you change them, remove the extension, clear its data, or Chrome otherwise removes that storage. Subscription records are kept while a subscription is active and afterward only as reasonably needed for refunds, chargebacks, accounting, fraud prevention, security or legal obligations. Service providers may retain information under their own policies and configured retention periods.

For privacy questions, access requests or deletion requests concerning information controlled by JustBlock, email support@justblock.org.

Changes

If this policy materially changes, the updated version will be posted here with a revised date. Where appropriate, material changes may also be described in release notes or an in-product notice.

Contact

Questions about JustBlock or this policy: support@justblock.org.