# Bookmark Detector

> Detects and removes duplicate bookmark on add and shows a notification about it.

Canonical page: [https://chrome-stats.com/d/bookmark-detector](https://chrome-stats.com/d/bookmark-detector)

## Overview

- **ID:** `bookmark-detector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Szilard Tester
- **Category:** bookmarks
- **Daily users:** 113
- **Weekly downloads:** 4
- **Rating:** 3.50 / 5 (4 ratings)
- **Version:** 0.1.2
- **Last updated:** 2019-11-09
- **First published:** 2019-11-05
- **Size:** 13 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/bookmark-detector/)
- **Website:** [https://github.com/szilardtester/bookmark-detector-firefox](https://github.com/szilardtester/bookmark-detector-firefox)

## Description

Bookmark Detector is a lightweight Chrome extension designed to help you maintain a clean and organized bookmark library by automatically detecting and removing duplicate bookmarks upon creation. Whenever you add a new bookmark, the extension checks for previously saved bookmarks with the same URL (ignoring differences after the '#' symbol) and removes duplicates instantly while notifying you about the action.

The extension includes a convenient on/off toggle, resetting with each browser restart, giving you control over its operation. It prioritizes your privacy by not storing or sending any data. Bookmark Detector is an essential tool for anyone looking to avoid clutter and maintain a streamlined browsing experience. The source code is openly available on GitHub, welcoming contributions and bug reports.

## Rankings

- #10,956 — Overall
- #28 — detect
- #70 — bookmark
- #97 — bookmarks
- #134 — ai tech
- #212 — book

## Permissions and access

### Permissions

- `bookmarks`
- `notifications`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Access to bookmarks may provide insights into user preferences and interests but generally carries low risk.
- 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

- [Bookmark Duplicate Cleaner](https://chrome-stats.com/d/bookmark-duplicate-cleaner) — 168 users, 3.00 / 5
- [Duplicate Bookmarks Finder](https://chrome-stats.com/d/duplicate-bookmarks-finder) — 466 users, 3.73 / 5
- [Duplicate Bookmark(s) Finder](https://chrome-stats.com/d/duplicate-bookmark-s-finder) — 456 users, 4.50 / 5
- [Bookmarks clean up](https://chrome-stats.com/d/bookmarks-clean-up) — 9,250 users, 4.30 / 5
- [Bookmark Manager Zero](https://chrome-stats.com/d/bookmark-manager-zero) — 80 users, 4.75 / 5
- [Bookmark Cleaner](https://chrome-stats.com/d/bookmark-cleaner) — 42 users
- [Bookmark Dupes](https://chrome-stats.com/d/bookmark-dupes) — 10,079 users, 4.72 / 5
- [UnBookmark - Bookmark Cleaner](https://chrome-stats.com/d/unbookmark-bookmark-cleaner) — 15 users
- [Duplicate Tabs Remover](https://chrome-stats.com/d/duplicate-tabs-remover) — 33 users
- [FreshMarks it! - Bookmark Updater](https://chrome-stats.com/d/freshmarks-it) — 3 users
- [BookmarksToFile](https://chrome-stats.com/d/bookmarkstofile) — 22 users, 5.00 / 5
- [Temporary Bookmarks](https://chrome-stats.com/d/temporary_bookmarks) — 35 users, 5.00 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/bookmark-detector)