Privacy Policy &
Limited Use Disclosure
We built BlockZeee on a single principle: your data is none of our business. Here's exactly what that means.
Contents
1 Overview
The short version: BlockZeee collects zero personal data and transmits nothing about you or your browsing to any server. The one exception, detailed in Section 3, is an optional filter-list fetch that contains no personal data. This policy exists to be transparent about that fact — not to bury what we collect in fine print.
BlockZeee ("the extension," "we," "us") is a browser extension available for Chrome and Firefox. Its sole purpose is to block ads, trackers, and fingerprinting scripts locally on your device using declarativeNetRequest rules and content scripts.
This Privacy Policy describes our data practices. If you have questions, contact us at the address in Section 8.
2 Data We Collect
BlockZeee collects no personal data whatsoever. Specifically:
- We do not collect your name, email address, or any account credentials.
- We do not record which websites you visit.
- We do not log which ads or trackers were blocked.
- We do not collect your IP address or device identifiers.
- We do not use analytics, telemetry, or crash-reporting services.
- We do not store any data on remote servers — because we have no servers.
All extension state (enabled/disabled toggle, settings preferences) is stored exclusively in your browser's local storage using the standard chrome.storage.local API. This data never leaves your device and is not accessible to us.
The one exception is the optional Blocklist Auto-Sync feature, described in Section 3: it periodically fetches a public filter list from a third-party server. That request carries no personal data and no data about you or your browsing.
3 How the Extension Works
BlockZeee operates entirely on-device using two mechanisms:
- declarativeNetRequest rules — A static rule set that instructs the browser to block matching network requests before they are made. The browser engine evaluates these rules; BlockZeee never sees the URLs being requested.
- Content scripts — JavaScript injected into page contexts to remove ad-related DOM elements (e.g., video-site companion slots, skip overlays). These scripts read page structure only to remove ad nodes and do not exfiltrate any data.
Cookie Consent Auto-Dismiss — enabled by default, this feature detects GDPR/cookie-consent banners from common consent-management platforms (OneTrust, Cookiebot, TrustArc, Quantcast, and others) and automatically accepts them on your behalf, so you don't have to click through a consent dialog on every new site. This happens entirely on-device: BlockZeee does not read, store, or transmit anything about which sites you visited or what you consented to. You can turn this off at any time via the "Cookie Consent Auto-Dismiss" toggle in the extension's Settings — turning it off means BlockZeee will no longer interact with consent banners at all, leaving them for you to answer yourself.
BlockZeee makes no outbound network requests to send data about you or your browsing. There are no license check endpoints and no telemetry endpoints.
The one exception is Blocklist Auto-Sync, an optional feature enabled by default. Once on install, and then once every 24 hours, the extension fetches the public EasyPrivacy filter list from https://easylist.to/easylist/easyprivacy.txt and parses the plain-text rules into local declarativeNetRequest rules. The request sends nothing but a standard conditional HTTP fetch (an ETag, cached locally, to avoid re-downloading an unchanged list) — no personal data, browsing history, or identifiers are attached. The fetched text is only parsed into blocking rules; it is never executed. This feature can be turned off at any time via the "Blocklist Auto-Sync" toggle in the extension's Advanced settings, which stops all future fetches.
4 Browser Permissions
The extension requests the following permissions and uses them as described:
- declarativeNetRequest / declarativeNetRequestFeedback — Required to block ad network requests and to count matched rules for the popup's "ads blocked" statistics. The browser handles matching; BlockZeee never receives request URLs.
- storage — Stores your on/off toggle and any settings locally on your device only.
- cookies — Used by the optional Cookie Auto-Clean feature: when a tab is closed, BlockZeee reads and deletes cookies for that tab's domain (unless the domain is whitelisted). This happens entirely on-device; cookie data is never read for any other purpose, stored, or transmitted.
- scripting — Required to inject content scripts for DOM-level ad removal (e.g., video-site ad elements).
- alarms — Used to schedule the optional Blocklist Auto-Sync fetch (see Section 3) every 24 hours. Does not run if Blocklist Auto-Sync is disabled.
- Host permissions (<all_urls>) — Required for declarativeNetRequest rules to apply across all websites, and also what lets BlockZeee identify the current tab's URL — used to update the extension's popup badge count (ads blocked on the current tab) and to identify the domain of a tab when it closes, for the Cookie Auto-Clean feature above. Tab URLs are read in memory only and are never stored or transmitted. BlockZeee does not read, collect, or process page content beyond DOM manipulation for ad removal.
5 Third-Party Services
BlockZeee does not integrate with any third-party analytics, advertising, or data-sharing services. We use no SDKs, no tracking pixels, and no external APIs. The only third-party server the extension contacts is easylist.to, for the optional Blocklist Auto-Sync feature described in Section 3, which does not receive any personal data.
The extension is distributed through browser extension stores (Chrome Web Store, Firefox Add-ons, etc.). Those stores have their own privacy policies governing your relationship with them as a platform; BlockZeee has no control over or responsibility for those policies.
6 Children's Privacy
BlockZeee does not collect any data from any user, including children under the age of 13. Because we collect no personal information, the extension is compliant with COPPA by default. We do not knowingly direct the extension at children as a primary audience.
7 Changes to This Policy
If we ever change this policy in a material way, we will update the "Last updated" date at the top of this page and, where required by platform policies, notify users through the extension's store listing. The current version of this policy is always available at the URL where you are reading it.
Because we collect no data today, any material change would represent an expansion of data collection — and we are committed to never doing that without explicit, informed user consent.
8 Contact
Questions, concerns, or requests regarding this policy can be directed to:
BlockZeee Privacy
Email: privacy@blockzeee.com
We will respond to all privacy-related inquiries within 5 business days.
9 Chrome Web Store — Limited Use Disclosure
In compliance with the Chrome Web Store Developer Program Policies, this section formally discloses how BlockZeee handles user data obtained through Chrome APIs.
Limited Use Compliance Statement
BlockZeee's use of information received from Chrome APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements. Specifically:
The one exception to "no server transmission" at all is a non-personal, one-way filter-list download (see Section 3) — no personal or user data is included in or derived from it.
All data accessed by BlockZeee (tab URLs, page DOM structure) is used only for its core function: blocking ads and trackers on the current page. This data is processed in memory, never stored to disk, never transmitted, and discarded when the tab closes.
Formal Limited Use Statement
BlockZeee will not use or transfer user data for purposes unrelated to the extension's single, stated purpose: blocking advertisements, trackers, and fingerprinting scripts in the user's browser.
BlockZeee will not use or transfer user data to determine creditworthiness or for lending purposes.
BlockZeee will not sell user data to third parties.
BlockZeee will not use or transfer user data for personalized advertising.
These commitments apply permanently and are not subject to future change without explicit, prominent disclosure and user consent.