# Yomitan

> Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.

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

## Overview

- **ID:** `yomitan`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Darius Jahandarie
- **Category:** appearance,language-support
- **Daily users:** 43,178
- **Weekly downloads:** 5,579
- **Rating:** 4.80 / 5 (114 ratings)
- **Version:** 26.8.24.0
- **Last updated:** 2026-09-03
- **First published:** 2023-12-08
- **Size:** 15 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/yomitan/)
- **Website:** [https://yomitan.wiki/](https://yomitan.wiki/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/yomitan/privacy/](https://addons.mozilla.org/firefox/addon/yomitan/privacy/)

## Description

Yomitan is a powerful, privacy-conscious pop-up dictionary built for language learners. Used by over 100,000 learners, it deciphers texts in 20+ languages and offers an interactive popup, a dedicated search page, support for thousands of dictionaries (including slang and kanji), and native pronunciation from multiple sources. It works fully offline and is completely free and open-source.

Advanced features include native audio playback with custom sources, automatic Anki flashcard creation via AnkiConnect, configurable data transmission for privacy, and the ability to add recommended or custom dictionary sources. Yomitan is ideal for learners who want quick in-context lookups, seamless flashcard workflows, and a flexible, offline-capable tool that respects user privacy.

## Rankings

- #350 — Overall
- #5 — Language Support
- #23 — Appearance
- #1 — tank
- #3 — flashcards
- #6 — power

## Permissions and access

### Permissions

- `storage`
- `clipboardWrite`
- `unlimitedStorage`
- `declarativeNetRequest`
- `scripting`
- `contextMenus`

### Host permissions

- `<all_urls>`

### Content script matches

- `*`

## Safety

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

## Review summary

Users generally praise Yomitan — many call it an excellent, well‑maintained add‑on that works very well as an English dictionary. The main repeated problem is difficulty installing dictionaries, including browser/workspace/container-related issues that can block installation.

### Pros

- Strong positive reception — many users call it a great or excellent add‑on
- Effective as a generic English dictionary and better than other extensions
- Actively maintained with a visible development team (users willing to donate/support)

### Cons

- Difficulty installing dictionaries (several users report they couldn't install dictionaries)
- Installation can be affected by browser workspace/container settings (reported workaround needed for some browsers)

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