# Kioku

> Learn Japanese by browsing the web and watching Netflix!

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

## Overview

- **ID:** `kioku`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Kioku
- **Category:** language-support
- **Daily users:** 5
- **Weekly downloads:** 2
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 0.2.0
- **Last updated:** 2022-01-06
- **First published:** 2022-01-04
- **Size:** 15 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/kioku/)

## Description

Kioku is a powerful Firefox add-on that helps you learn Japanese while browsing the web and watching Netflix. It keeps track of known words, highlights unfamiliar ones, and provides Furigana for easier reading. With Kioku, you can import your learning progress from Anki and view word counts for each website. Start your Japanese learning journey today with Kioku!

## Rankings

- #43,931 — Overall

## Permissions and access

### Permissions

- `storage`
- `contextMenus`
- `downloads`
- `<all_urls>`

### Content script matches

- `www.netflix.com`
- `<all_urls>`

## Safety

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

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