Last updated: June 9, 2026

This privacy policy describes how the Filter Block Detector Chrome extension ("the extension") handles information. The extension is developed and maintained by Five Star Programming.

Plain-English summary

The extension watches your browser's own internal network activity to tell you when something on the current page has been blocked by a proxy or content filter. Nothing leaves your computer. No accounts, no servers, no analytics, no tracking.

Information the extension accesses

To do its job, the extension observes the following on each page you visit:

  • The URLs of network requests the browser makes

  • The resource type of each request (script, image, XHR, etc.)

  • The error code or response header indicating a block, when one occurs

  • The hostname of the current tab, to apply per-site pause and "don't show again" preferences

This information is processed entirely inside your browser. It is never transmitted, sold, shared, or logged externally.

Information the extension stores locally

The extension stores the following small pieces of data using Chrome's local storage (chrome.storage.local), on your machine only:

  • The on-screen position of the floating bubble

  • The list of sites where you have paused detection

  • The list of URLs you have chosen to hide ("don't show again"), both per-site and globally

You can clear this data at any time by removing the extension or by right-clicking the extension icon and choosing "Reset 'Don't show again' list".

Information the extension does NOT access

  • Page content, text, or DOM

  • Form contents, including usernames and passwords

  • Cookies, authentication tokens, or credentials

  • Browsing history (the extension only sees requests as they happen, not historical records)

  • Location, device identifiers, or personal information

  • Anything on sites the extension hasn't been asked to observe

Third parties

The extension does not communicate with any third-party server. It contains no analytics, tracking pixels, telemetry, or remote logging code.

Email reports

When you choose to use the "Attach to email" feature, the extension assembles a report containing the page URL and the blocked-resource details you selected, then opens your default mail client via a mailto: link with that report in the body. The extension does not send the email itself, does not store the report, and does not have access to your email account. The recipient and whether to send are entirely your choice.

Feedback link

If you click "Send feedback" inside the extension, a new browser tab opens to fivestarprogramming.com. The extension does not transmit any extension data along with this link.

Changes

If this policy changes, the "Last updated" date will be revised and the new policy will be published at this URL.

Contact

Questions about this policy or the extension can be sent to: help@5starprogramming.com Website: https://fivestarprogramming.com