# Bookmark Duplicate Cleaner > Remove duplicate, broken, and unwanted bookmarks with one click. Smart detection, preview mode, and safe deletion. All processing happens locally in your browser. Free and easy to use! Canonical page: [https://chrome-stats.com/d/bookmark-duplicate-cleaner](https://chrome-stats.com/d/bookmark-duplicate-cleaner) ## Overview - **ID:** `bookmark-duplicate-cleaner` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** Mahay Alam Khan - **Category:** bookmarks - **Daily users:** 166 - **Weekly downloads:** 9 - **Rating:** 3.00 / 5 (2 ratings) - **Version:** 1.0 - **Last updated:** 2025-10-31 - **First published:** 2025-10-28 - **Size:** 15 KB - **Data as of:** 2026-09-14 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/bookmark-duplicate-cleaner/) ## Description Keep Your Bookmarks Organized. Clean, organize, and optimize your Firefox bookmarks with one click! Bookmark Cleaner is a powerful yet easy-to-use extension that helps you remove duplicate, broken, and unwanted bookmarks directly from your Firefox browser. No need to export/import HTML files - everything works seamlessly within your browser. ✨ Key Features 🔄 Smart Duplicate Detection Multiple detection methods: Find duplicates by URL, title, or both Flexible keep options: Choose to keep the first or last occurrence Intelligent sorting: Automatically organizes duplicates by date added Prevents data loss: Always keeps at least one copy of each bookmark ❌ Broken Link Detection Automatic URL testing: Checks if bookmarks are still accessible Timeout handling: Identifies links that take too long to respond Background processing: Continue browsing while the extension works Progress tracking: Real-time updates on checking progress 🔞 Adult Content Filtering Keyword-based detection: Identifies NSFW/adult content automatically URL and title scanning: Checks both bookmark titles and URLs Privacy-focused: All processing happens locally in your browser Optional feature: Enable only when needed 🎯 User-Friendly Interface Full-page interface: Opens in a new tab, won't close accidentally Visual statistics: See exactly what will be removed before cleaning Preview mode: Review bookmarks before deletion Progress indicators: Real-time feedback during scanning and cleaning Safety confirmations: Multiple warnings before permanent deletion 🚀 How It Works Click the extension icon - Opens the Bookmark Cleaner in a new tab Configure your preferences - Choose detection methods and filters Scan your bookmarks - Click "Scan Bookmarks" to analyze Review the results - See statistics and preview items to be removed Clean with confidence - Click "Clean Bookmarks" to remove unwanted items 🔒 Privacy & Security 100% local processing - No data is sent to external servers No tracking or analytics - We don't collect any information No registration required - Works immediately after installation Open source friendly - Transparent code you can trust Offline capable - Works without internet connection (except broken link checking) ⚙️ Customization Options Duplicate Detection Method: URL only, Title only, or Both Keep Preference: First occurrence or Last occurrence Adult Content Filter: Toggle on/off based on your needs Broken Link Checker: Optional feature for finding dead links Preview Display: Choose whether to see detailed preview before cleaning 📊 What You'll See After scanning, the extension displays: Total number of bookmarks in your browser Number of duplicate bookmark groups found Count of adult/NSFW content detected Number of broken or unreachable links Total bookmarks that will be removed ⚠️ Important Notes Backup recommended: Always backup your bookmarks before cleaning (Bookmarks → Manage Bookmarks → Import and Backup → Backup) Permanent deletion: Removed bookmarks cannot be recovered Broken link checking: May take time depending on bookmark count Multiple confirmations: The extension asks for confirmation before deleting anything 🎓 Use Cases Regular maintenance: Clean up years of accumulated bookmarks Privacy protection: Remove unwanted adult content Spring cleaning: Find and remove dead links Organization: Eliminate duplicate entries cluttering your folders Browser migration: Clean bookmarks before switching browsers Shared computers: Remove personal bookmarks before sharing device 🆘 Support & Feedback If you encounter any issues or have suggestions for improvements: Please report bugs through the support page Rate and review to help other users Share your experience and feature requests 📝 Permissions Explained This extension requires the following permissions: bookmarks: To read and remove bookmarks from your browser storage: To save your preferences between sessions tabs: To open the cleaner interface in a new tab <all_urls>: To check if bookmark URLs are still working (only when broken link checking is enabled) 🌟 Why Choose Bookmark Cleaner? Unlike other bookmark management tools: ✅ Works directly in your browser (no export/import needed) ✅ Multiple cleaning options in one extension ✅ Safe with multiple confirmation dialogs ✅ Fast and efficient processing ✅ Clean, modern interface ✅ Regular updates and improvements ✅ Completely free with no premium features locked ## Rankings - #9,098 — Overall - #320 — Bookmarks - #210 — cleaner ## Permissions and access ### Permissions - `bookmarks` - `storage` - `tabs` - `` ## Safety - **Risk impact:** High risk impact - **Risk likelihood:** Moderate risk likelihood ### Analysis details - Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern. - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [UnBookmark - Bookmark Cleaner](https://chrome-stats.com/d/unbookmark-bookmark-cleaner) — 15 users - [Bookmark Cleaner](https://chrome-stats.com/d/bookmark-cleaner-add) — 15 users - [Duplicate Bookmark(s) Finder](https://chrome-stats.com/d/duplicate-bookmark-s-finder) — 454 users, 4.50 / 5 - [Bookmark Cleaner Pro - Duplicate Remover & Manager](https://chrome-stats.com/d/bookmark-cleaner-pro) — 92 users, 5.00 / 5 - [kitty Bookmark Cleaner](https://chrome-stats.com/d/%E7%8C%AB%E5%92%AA%E4%B9%A6%E7%AD%BE%E6%B8%85%E7%90%86) — 205 users, 5.00 / 5 - [Bookmarks clean up](https://chrome-stats.com/d/bookmarks-clean-up) — 9,366 users, 4.30 / 5 - [Bookmarks Organizer](https://chrome-stats.com/d/bookmarks-organizer) — 13,311 users, 3.65 / 5 - [Auto-Bookmark Cleaner](https://chrome-stats.com/d/auto-bookmark-cleaner) — 5 users - [Bookmark Manager Zero](https://chrome-stats.com/d/bookmark-manager-zero) — 82 users, 4.75 / 5 - [Bookmark Domain Updater](https://chrome-stats.com/d/bookmark-domain-updater) — 1 users - [Bookmark Organizer vip pro](https://chrome-stats.com/d/bookmark-organizer-vip-pro) - [Bookmark Cleaner](https://chrome-stats.com/d/bookmark-cleaner) — 43 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/bookmark-duplicate-cleaner)