Trace — Fanfiction Reading Tracker Firefox

Trace — Fanfiction Reading Tracker

Track AO3 and FanFiction.net reading from your browser: save stories for later, see your reading status, and keep chapter progress in a private library you can access anywhere.
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Modify request and response headers. No ads, no malware.

Features & Capabilities

This browser extension keeps your library of stories visible on the archive pages, so you can see at a glance whether you've read a story before, and what you thought.

With Trace you can:

• See whether a supported work is saved, reading, paused, caught up, finished, or dropped while you browse. • Keep chapter progress visible. • Automatically track chapter progress as you read. • Add a 5 star rating as you read. • Hide works from Trace’s browsing overlay when you do not want to see them again. • Import entire bookmark and listing pages into your private library. • Login to tracefiction.com for deeper search, filtering, personal notes, personal tags, 5 star ratings, collections, and more. It quickly becomes a rich personal library of all the stories you've read across sites. • Access Trace and all your stories on any device where you can login to the site and download the extension. • If you are on iOS you can also download the app to use on iOS Safari. • If you are on iOS you can also download the companion reader app which tracks the ePubs you read offline in the same library.

This extension requires a free account at tracefiction.com, which is where your stories are tracked for you.

Privacy:

• Trace does not (and will never) ask for your AO3 or FanFiction.net password. • The extension does not request browser cookie permission. • Trace only reads visible story metadata and reading-progress signals on supported pages, not story text or unrelated browsing history. • Your Trace library is private to you. Only chosen collections have the option to be made public. • The browser extension source code is published for inspection at https://github.com/tracefiction/trace-browser-extension

All this is completely free until your library gets big enough to need more storage. I've made 100 stories the limit for free users and then it's a small monthly or yearly payment. I'm hoping I can increase the free limit as we get more users. The costs go towards supporting development and paying for all the features that require cloud storage, database, api, App Store, etc. I've also tried to keep the cost down to the lowest feasible amount to support this since unfortunately payment providers and app stores do take a cut!

Trace is an unofficial companion for supported sites. It is not affiliated with Archive of Our Own, the Organization for Transformative Works, FanFiction.net, or FictionPress.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Trace
Daily users:
11 1
Rating:
3.00
(1)
Version:
0.5.14 Last updated: 2026-07-15
Version code:
6356309
Creation date:
2026-04-18
Firefox add-on GUID:
trace@tracefiction.com
Firefox add-on numeric ID:
3002916
Firefox on Android:
Yes
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • https://archiveofourown.org/*
  • https://*.archiveofourown.org/*
  • https://archiveofourown.gay/*
  • https://*.archiveofourown.gay/*
  • https://archive.transformativeworks.org/*
  • https://www.fanfiction.net/*
  • https://m.fanfiction.net/*
  • https://api.tracefiction.com/*
  • https://www.tracefiction.com/*
Content scripts matches:
  • archiveofourown.org
  • *.archiveofourown.org
  • archiveofourown.gay
  • *.archiveofourown.gay
  • archive.transformativeworks.org
  • www.fanfiction.net
  • m.fanfiction.net
  • www.tracefiction.com
Size:
166.70KB
Email:
su*****@tracefiction.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-07
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Trace
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/tracefiction/
Email:
su*****@tracefiction.com
Website:
https://tracefiction.com/support

Permission Change History

2026-07-12: Version 0.5.5 → 0.5.7
Remove Host permissions: https://ao3.org/* https://*.ao3.org/* https://tracefiction.com/*

User Reviews

This extension is very beautiful and I'm very impressed by its metadata collection. It's a little slow because it takes time to connect to the server (fics aren't saved locally, which poses a security concern, but people might like how it can sync with other devices) and I wish the extension pop up was movable. The extension looks slightly different than what's pictured here (the buttons are shadowed for some reason on ao3 but aren't on ffn??) but tbh unless you're willing to pay for the unlimited version ($4 a month) then you might prefer other extensions.
by Fi*****, 2026-07-31
View all user reviews ›

Is Trace — Fanfiction Reading Tracker Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Trace — Fanfiction Reading Tracker requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ******* ****** ** *** ********* ******** ******************** ******************** ************************ *************** ****************
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Trace — Fanfiction Reading Tracker may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
  • Medium **** ********* *** *** **** *******
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