Privacy Policy for Close Duplicate Tab
Last updated: September 2, 2025 | Version 2.7.2
🔒 Privacy First: Close Duplicate Tab is designed with privacy as a core
principle. We do not collect, store, or transmit any personal data. All processing happens
locally in your browser.
Overview
Close Duplicate Tab is a Chrome extension that helps users manage browser tab clutter by
automatically identifying and closing duplicate tabs with identical URLs. This privacy
policy explains how the extension handles data and protects your privacy.
Key Features: Automatic duplicate detection, smart tab preservation, tab
suspender compatibility, real-time statistics, search functionality, and professional
dashboard interface.
Data Collection
🚫 Zero Data Collection: We do not collect any personal data, browsing
history, or personally identifiable information. The extension operates entirely within
your browser and does not transmit any information to external servers.
Data Access & Usage
The extension accesses the following data solely for its core functionality:
-
Tab URLs: Read to identify duplicate tabs with identical URLs, including
extraction of real URLs from suspended tabs (Marvellous Suspender compatibility)
-
Tab Titles: Read to display in the statistics dashboard and domain
listings
-
Tab States: Read to determine which tabs are active, pinned, suspended,
or in different browser windows
-
Window Information: Read to support "Current Window Only" functionality
🔄 Local Processing Only: All data is processed locally in your browser
in real-time. No data is stored permanently, cached, or transmitted to external servers.
When you close the extension, all processed data is immediately discarded.
Data Storage
The extension stores only user preferences using Chrome's secure sync storage:
-
autoClose: Your preference for automatic duplicate closing (boolean:
true/false)
-
currentWindowOnly: Your preference to limit duplicate detection to the
current window only (boolean: true/false)
-
sortTabs: Your preference to reorganize all tabs alphabetically by URL
when closing duplicates (boolean: true/false)
📝 Settings Storage: These preferences are stored locally on your device
and synced across your Chrome browsers if you're signed into Chrome. This sync is handled
entirely by Google Chrome's built-in sync service - we do not have access to this data.
What we DON'T store:
- ❌ Browsing history or visited URLs
- ❌ Tab content or page data
- ❌ Personal information or identifiers
- ❌ Usage analytics or tracking data
- ❌ Any data on external servers
Chrome Permissions
The extension requests minimal permissions necessary for its functionality:
-
"tabs": Required to:
- Read tab URLs and titles to identify duplicates
- Detect tab states (active, pinned, suspended)
- Close duplicate tabs
- Switch to tabs when clicked in the dashboard
- Support multi-window functionality
-
"storage": Required to:
- Save your extension preferences (autoClose, currentWindowOnly, sortTabs)
- Sync settings across your Chrome browsers (if Chrome sync is enabled)
🔒 Minimal Permissions: We only request the minimum permissions necessary
for the extension to function. We do not request access to browsing history, bookmarks,
downloads, or any other sensitive data.
Third-Party Services
🚫 Zero Third-Party Dependencies: This extension does not use any
third-party services, analytics tools, tracking scripts, advertising networks, or external
APIs. It operates completely independently within your browser.
Data Security
Security measures in place:
-
🔒 Local Processing: All data processing occurs locally within your
browser
-
🚫 No External Transmission: No data is transmitted to external servers
or third parties
-
🔄 Real-time Processing: Tab data is processed in real-time and
immediately discarded
-
🛡️ Chrome Security: Benefits from Chrome's built-in extension security
model
-
📂 Open Source: Full source code is publicly available for security
review
Open Source Transparency
Close Duplicate Tab is fully open source, which means:
-
📂 Source Code: Complete source code is available at
GitHub
-
🔍 Code Review: Anyone can review the code to verify privacy claims
-
🛡️ Security Audits: Community can identify and report security issues
-
🤝 Contributions: Community contributions improve the extension for
everyone
Your Rights
Since we don't collect any personal data, there's no personal data to:
- ✅ Access (no data stored about you)
- ✅ Correct (no data to correct)
- ✅ Delete (no data to delete)
- ✅ Port (no data to export)
You can uninstall the extension at any time to completely remove it and all its stored
preferences.
Compliance
This extension complies with:
-
🇪🇺 GDPR (General Data Protection Regulation) - No personal data
processing
-
🇺🇸 CCPA (California Consumer Privacy Act) - No personal information
collection
-
🌐 Chrome Web Store Policies - Follows all Chrome extension guidelines
-
🔒 Privacy by Design - Built with privacy as a fundamental principle
Changes to This Policy
If we make changes to this privacy policy, we will:
- Update the "Last updated" date at the top of this page
- Update the version number to match the extension version
- Notify users through the extension update process if changes are significant
We recommend reviewing this policy periodically to stay informed about how we protect your
privacy.
Contact Information
If you have questions about this privacy policy or the extension, you can: