# JustAnime Sync

> Marks episodes and chapters on JustAnime as you watch or read them, wherever you are.

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

## Overview

- **ID:** `justanime-sync`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** umutxyp
- **Category:** photos-music-videos
- **Daily users:** 1
- **Weekly downloads:** 2
- **Version:** 1.15.0
- **Last updated:** 2026-08-31
- **First published:** 2026-08-26
- **Size:** 225 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/justanime-sync/)
- **Website:** [https://justanime.me/developers](https://justanime.me/developers)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/justanime-sync/privacy/](https://addons.mozilla.org/firefox/addon/justanime-sync/privacy/)

## Description

JustAnime Sync keeps your anime and manga list up to date without you
touching it.

Watch or read like you normally do. When you're far enough into an
episode or chapter, the extension marks it on your JustAnime account —
and on any AniList or MyAnimeList account you've linked there.
<ul><li>Works on 200+ streaming and reading sites, from Netflix and
  Crunchyroll to MANGA Plus and VIZ</li><li>Every site has its own switch, and one switch pauses all of them</li><li>New sites arrive from the server, so you never wait for an update</li><li>Wrong title? Fix it from the page, and that page is never guessed again</li><li>Stopped halfway? It remembers where, so you can pick it back up</li><li>Add your own Plex, Jellyfin, Emby, Komga or Kavita — that address
  stays in your browser and is never sent to us</li></ul>
<strong>Privacy.</strong> On a supported site the extension reads the page title, the
address, how far along you are, and — where a site needs it — the text of
the specific elements its rule points at. No other page content, no
cookies, no browsing history. The only server it talks to is
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/48d45edc3d878ecb321103e49060ce35a6f6442b475d113dd80e27a3fb128636/http%3A//justanime.me" rel="nofollow">justanime.me</a>.

You need a free JustAnime account: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/54e889c4216056549ac5a37a37a4032b4b55a8110b33aec298020dea6bbb2bab/https%3A//justanime.me" rel="nofollow">https://justanime.me</a>

## Rankings

- #112,035 — Overall
- #191 — episode
- #195 — sync

## Permissions and access

### Permissions

- `storage`
- `identity`
- `alarms`
- `scripting`

### Host permissions

- `*://*/*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates 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

- [AniTube → MyAnimeList Sync](https://chrome-stats.com/d/anitube-myanimelist-sync)
- [MAL-Sync](https://chrome-stats.com/d/mal-sync) — 14,539 users, 4.82 / 5
- [anitrack](https://chrome-stats.com/d/anitrack) — 8 users, 3.50 / 5
- [AniList Tracker](https://chrome-stats.com/d/anilist-tracker) — 15 users, 5.00 / 5
- [Anime Tracker Anilist](https://chrome-stats.com/d/anime-tracker-anilist) — 1 users
- [Anime List Popup](https://chrome-stats.com/d/anime-list-popup) — 14 users, 5.00 / 5
- [Anime Logger](https://chrome-stats.com/d/anime-logger)
- [patchouli-chan: auto-sync your MAL](https://chrome-stats.com/d/patchouli-chan) — 3 users, 4.00 / 5
- [Animet Auto](https://chrome-stats.com/d/animet-auto) — 1 users
- [Unofficial Anilist Updater](https://chrome-stats.com/d/unofficial-anilist-updater) — 13 users, 4.50 / 5
- [MangaTime - Auto Manga Tracker](https://chrome-stats.com/d/mangatime-auto-manga-tracker) — 9 users
- [Manga Sync](https://chrome-stats.com/d/manga-sync)

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