AdShield Pro
Privacy Policy — Extension ID: eibnkbhhjiogbffbbfjpamabjmlchmbd
1. Introduction
AdShield Pro is a browser extension that blocks advertisements, trackers, and malicious content. This Privacy Policy describes in full detail what data is collected, how it is stored, how long it is retained, whether it is shared, and what rights you have as a user.
The developer of AdShield Pro has zero access to your data at any time. We operate no servers, no databases, and no analytics infrastructure.
2. Data We Collect and Store
2.1 Data We Do NOT Collect
- Browsing history or visited URLs
- Personally identifiable information (PII) of any kind
- IP addresses or geolocation data
- Device identifiers or hardware fingerprints
- Keystrokes, form inputs, or passwords
- Analytics, telemetry, or crash reports
2.2 Data Stored Locally on Your Device (chrome.storage.local)
The following data is stored exclusively on your device and is never transmitted to the developer or any third party:
| Data | Purpose | Accessible by developer? |
|---|---|---|
| Extension on/off state | Remember your preference | No |
| Pause timer | Remember pause duration | No |
| Custom blocking rules (CSS selectors) | Apply your personal element-hiding rules | No |
| Whitelisted domains | Skip blocking on chosen sites | No |
| Ad blocking statistics (counts only, no URLs) | Display stats in the popup | No |
| YouTube ad-skip settings | Customize YouTube behavior | No |
| Cloud rule version & last update timestamp | Track rule freshness | No |
| AI usage statistics (token count, blocked count) | Display AI stats in popup | No |
2.3 Data Stored in Chrome Sync Storage (chrome.storage.sync)
The following data is stored in chrome.storage.sync, which is a browser-managed storage area controlled entirely by Google Chrome:
| Data | Purpose | Accessible by developer? |
|---|---|---|
| AI feature enabled/disabled state | Sync your AI preference across your signed-in Chrome devices | No |
| Gemini API key(s) you enter | Authenticate directly with Google's Gemini API from your browser | No |
- Your API key is stored in
chrome.storage.sync— a sandboxed storage area managed entirely by Google Chrome, not by AdShield Pro. - The developer of AdShield Pro has zero access to
chrome.storage.syncdata. It is never transmitted to, read by, or stored on any server owned by the developer. - The key is used exclusively to make direct HTTPS calls from your browser to Google's Gemini API. AdShield Pro does not proxy, intercept, log, or forward this key at any point.
- If you are signed into Chrome, Google may sync this storage across your own devices as part of Chrome's built-in sync feature. This sync is governed by Google's Privacy Policy, not by AdShield Pro.
- You can remove your API key at any time from the extension's Settings tab → AI Filter section.
3. How Data Is Processed
3.1 Ad Blocking (Core Feature)
AdShield Pro uses Chrome's built-in declarativeNetRequest API to block network requests. This API operates entirely within the browser — no request data is sent to the developer. The extension matches URLs against locally stored and remotely fetched rule lists without transmitting any browsing data externally.
3.2 Remote Rule List Updates
AdShield Pro periodically fetches a JSON rule list from GitHub to keep blocking rules current. During this fetch:
- Only a static list of URL patterns is downloaded
- No personal data, browsing history, or user identifiers are transmitted
- No executable code is downloaded or run
- The connection is strictly one-way: download only
3.3 Optional AI Content Filter (Google Gemini API)
- This feature is off by default and only activates if you explicitly enable it and provide your own Gemini API key.
- When enabled, your browser sends page text snippets directly to Google's Gemini API using the key you provided.
- AdShield Pro does not act as a proxy or intermediary — the request goes directly from your browser to Google's servers over HTTPS.
- The developer of AdShield Pro cannot see, intercept, or store any part of this communication.
- You can disable this feature or remove your API key at any time from the Settings tab.
This feature's data processing is governed by Google's Privacy Policy.
4. Legal Basis for Processing
AdShield Pro processes data stored on your device solely to deliver the extension's core functionality. No personal data is collected or processed by the developer.
For optional features involving third-party services (Google Gemini API), processing is based on your explicit consent, which you provide by entering your API key and enabling the feature. You may withdraw consent at any time by disabling the feature or removing your key.
5. Data Retention
| Data | Retention Period |
|---|---|
| Local settings, rules, and statistics | Until you uninstall the extension or clear it manually via Chrome settings |
| Sync storage (AI key, AI enabled state) | Until you remove it from the extension Settings tab or clear Chrome sync data |
| Developer-held data | None — the developer holds no user data whatsoever |
6. Data Sharing and Third Parties
AdShield Pro does not sell, rent, trade, or share user data with any third party.
The extension interacts with the following external services solely at your direction:
| Service | Interaction | Data Sent | Governed By |
|---|---|---|---|
| Google Gemini API | Optional AI content analysis (only if you enable it and provide a key) | Page text snippets sent directly from your browser to Google | Google Privacy Policy |
| GitHub | Downloading ad-blocking rule list updates | No user data sent — download only | GitHub Privacy Statement |
7. Permissions Justification
Chrome requires the following permissions, each with a specific and necessary purpose. No permission is used for data collection or surveillance.
| Permission | Why It Is Required |
|---|---|
activeTab | Apply blocking rules on the currently active tab |
alarms | Schedule periodic rule list updates in the background |
storage | Save your settings, custom rules, and statistics locally on your device |
scripting | Inject content scripts to remove cosmetic ad elements from pages |
tabs | Read the current tab URL to apply site-specific rules |
declarativeNetRequest | Block ad and tracker network requests natively via Chrome's built-in API |
declarativeNetRequestFeedback | Display blocking statistics to you in the popup |
webNavigation | Intercept navigation events before a page loads to instantly redirect blocked sites — prevents blocked content from ever rendering |
host_permissions (<all_urls>) | Apply blocking rules across all websites you visit |
8. Your Rights
Depending on your jurisdiction (including GDPR, CCPA, and similar laws), you may have the following rights:
- Right to Access: Request information about data held about you
- Right to Erasure: Request deletion of your data
- Right to Rectification: Request correction of inaccurate data
- Right to Object: Object to certain types of processing
- Right to Data Portability: Request a copy of your data in a portable format
- Right to Withdraw Consent: Withdraw consent for optional features at any time
Since AdShield Pro does not collect or store any personal data on external servers, these rights are primarily exercised directly on your device:
- To delete all extension data: Uninstall the extension or use Chrome's "Clear data" option for the extension
- To remove your Gemini API key: Open the extension popup → Settings → AI Filter → remove your key
- To disable AI processing: Toggle off the AI Content Filter in Settings
For any privacy-related inquiries, contact: tylngkhn@gmail.com
9. Children's Privacy
AdShield Pro does not knowingly collect any data from anyone, including children under the age of 13 (or the applicable age of digital consent in your jurisdiction). The extension collects no personal data from any user of any age.
10. Security
- All extension data is stored using Chrome's built-in storage APIs (
chrome.storage.localandchrome.storage.sync), which are sandboxed and inaccessible to other extensions or websites - The developer operates no servers, databases, or infrastructure that stores user data
- There is no risk of a developer-side data breach because no user data is ever transmitted to the developer
- Your Gemini API key is stored in Chrome's sync storage and is only transmitted directly to Google's API endpoints over HTTPS
11. Changes to This Policy
If this Privacy Policy is updated, the revised version will be published at the same URL with an updated "Last updated" date. For significant changes, we will update the extension version notes. Continued use of the extension after changes constitutes acceptance of the updated policy.
12. Contact
For questions, concerns, or privacy-related requests:
- Email: tylngkhn@gmail.com
- GitHub: github.com/gkhantyln
- Extension ID: eibnkbhhjiogbffbbfjpamabjmlchmbd