# KBChan

> Companion to KanjiBreakdown Web and Windows Apps Study with Native Japanese Subtitles in any of your favorite streaming services including Crunchyroll, Netflix, Amazon Prime Video, and more.

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

## Overview

- **ID:** `kbchan`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** KanjiBreakdown
- **Category:** language-support
- **Daily users:** 19
- **Weekly downloads:** 6
- **Version:** 0.11
- **Last updated:** 2026-08-27
- **First published:** 2025-11-14
- **Size:** 54 MB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/kbchan/)
- **Website:** [https://www.kanjibreakdown.com/](https://www.kanjibreakdown.com/)

## Description

Companion to KanjiBreakdown Web and Windows Apps. Learn Japanese by adding selectable Japanese subtitles to videos on Crunchyroll, Netflix, Prime, YouTube, and more. Connects with KanjiBreakdown Desktop App and <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/7b321e90a38b7261c0c1a85c13f22394dda3b9f1909cc2647437b71f406ea2ef/http%3A//KanjiBreakdown.com" rel="nofollow">KanjiBreakdown.com</a> to show popup sentence and kanji breakdowns with dictionary definitions, recommended learning order, personal memory aids, shared mnemonic stories, and add items to your SRS learning lists, review known items and more! Learn Japanese with native content and optimized efficient self learning!

Will automatically use Japanese subtitles from the current stream when available, or you can automatically search for Japanese subtitles matching your content or even drag and drop your own custom subtitle files.

Subtitle sidebar support:

Crunchyroll
Netflix
Amazon Prime Video
Stremio Web
local video files in your browser

Subtitles only support:

YouTube

## Rankings

- #25,138 — Overall
- #177 — prime

## Permissions and access

### Permissions

- `alarms`
- `storage`
- `tabs`
- `unlimitedStorage`
- `webRequest`

### Host permissions

- `https://www.kanjibreakdown.com/*`
- `<all_urls>`
- `ws://localhost:12654/`
- `file:///*`
- `https://jimaku.cc/*`

### Content script matches

- `<all_urls>`
- `*.stremio.com`
- `*.youtube.com`
- `*.primevideo.com`
- `*.netflix.com`
- ``
- `*.crunchyroll.com`

## Safety

- **Risk impact:** Very 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 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).

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