# AO3rdr

> A bookmark helper and tag blacklister for Archive of Our Own.

Canonical page: [https://chrome-stats.com/d/ao3rdr](https://chrome-stats.com/d/ao3rdr)

## Overview

- **ID:** `ao3rdr`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Firefox user 11409520
- **Category:** feeds-news-blogging,bookmarks
- **Daily users:** 1,119
- **Weekly downloads:** 6
- **Rating:** 4.54 / 5 (24 ratings)
- **Version:** 1.8.2resigned1
- **Last updated:** 2024-04-25
- **First published:** 2015-01-19
- **Size:** 331 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ao3rdr/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/ao3rdr/privacy/](https://addons.mozilla.org/firefox/addon/ao3rdr/privacy/)

## Description

AO3rdr is an unofficial Chrome extension designed to enhance your Archive of Our Own (AO3) experience. It offers an intuitive bookmark manager with a unique three-star rating system to organize your favorite works efficiently.

Key features include the ability to hide works you don't want to see, blacklist specific tags to filter content, bookmark based on the last chapter you've read, and scan your bookmarks for any updates. You can also keep track of your last visit for easy navigation. AO3rdr supports data backup and restoration to protect your preferences. Being open source ensures transparency and continuous improvement from the community.

## Rankings

- #3,128 — Overall
- #100 — Bookmarks
- #169 — Feeds, News & Blogging

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `tabs`
- `https://boiling-caverns-2782.herokuapp.com/*`
- `https://*.ao3rdr.com/*`

### Content script matches

- `archiveofourown.org`
- `*.ao3rdr.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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).

## Review summary

Users praise AO3rdr for rating and marking fics, hiding unwanted content, and tracking read status (with device sync). Recurring negatives are Firefox compatibility issues and several nonfunctional bookmark/management features, suggesting maintenance problems that leave important features broken or inaccessible.

### Pros

- Easy to rate and mark fics (3‑point/star system) — many users rely on it to track reads.
- Blocks/hides unwanted content (blacklist tags) so users can avoid spoilers or things they don’t want to see.
- Shows read/unread status and integrates with bookmarks; sync across devices is possible once set up.

### Cons

- Compatibility and stability problems after Firefox updates — multiple users report features stop working on Firefox.
- Bookmark/management features are incomplete or nonfunctional (bookmark-by-chapter, settings filters/search, blacklist page access).
- Signs of poor maintenance/updates — users report broken behavior, limited support and difficulty getting features restored.

## Similar extensions and apps

- [AO3 Advanced Marker](https://chrome-stats.com/d/ao3-advanced-marker) — 1,464 users, 4.38 / 5
- [AO3 Enhancer](https://chrome-stats.com/d/ao3-enhancer) — 166 users, 5.00 / 5
- [aibookmarker](https://chrome-stats.com/d/aibookmarker) — 6 users, 3.00 / 5
- [AO3 Fic Recommender](https://chrome-stats.com/d/ao3-fic-recommender) — 1 users
- [AO3 Enhancements](https://chrome-stats.com/d/ao3-enhancements) — 6,332 users, 4.60 / 5
- [FandomGobbler (previously AO3 Story Tracker)](https://chrome-stats.com/d/ao3-story-tracker) — 61 users, 3.50 / 5
- [AO3 Kudos Checker](https://chrome-stats.com/d/ao3-kudos-checker) — 16 users
- [AO3 Reading Companion](https://chrome-stats.com/d/ao3-reading-companion) — 8 users, 5.00 / 5
- [AO3 tag downloader](https://chrome-stats.com/d/ao3-tag-downloader) — 31 users, 3.00 / 5
- [AI Bookmark Tagger](https://chrome-stats.com/d/ai-bookmark-tagger) — 6 users, 4.00 / 5
- [Bookmark Manager](https://chrome-stats.com/d/bookmarkmanager)
- [Barbo's Better Bookmark Organizer](https://chrome-stats.com/d/bbbo) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/ao3rdr)