# English (US) Dictionary

> English (US) dictionary based on the official Mozilla dictionary.

Canonical page: [https://chrome-stats.com/d/english-us-dictionary](https://chrome-stats.com/d/english-us-dictionary)

## Overview

- **ID:** `english-us-dictionary`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** flod
- **Category:** general
- **Daily users:** 326,591
- **Weekly downloads:** 550
- **Rating:** 4.29 / 5 (35 ratings)
- **Version:** 153.20260519
- **Last updated:** 2026-05-19
- **First published:** 2022-12-29
- **Size:** 206 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/english-us-dictionary/)
- **Website:** [https://github.com/flodolo/dictionary-en-us](https://github.com/flodolo/dictionary-en-us)

## Description

The English (US) Dictionary Chrome extension repackages the official en-US dictionary from Mozilla's central repositories. It is built upon the SCOWL word list (size 60) and integrated with over 6,000 additional words contributed by Mozilla, ensuring comprehensive and accurate spell checking.

This extension is ideal for users seeking reliable American English spell checking support on the web. For guidance on using dictionaries in Firefox, please refer to Mozilla's support article. Additionally, there is a transparent process for reporting bugs and requesting new words to be added to the dictionary, facilitating continuous improvement and user involvement.

## Rankings

- #50 — Overall
- #2 — dictionary
- #7 — usb
- #12 — section
- #46 — component
- #57 — base

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension was updated more than 6 months ago. Older versions are more likely to be stable and safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

User feedback is mixed: multiple reviewers call the add-on useful and say it works, while others report it doesn’t appear or function after installation. A common theme is user confusion about how to enable or find the dictionary and frustration that documentation or guidance is lacking, which fuels negative reviews.

### Pros

- Provides an English (US) dictionary pack — many users find it useful/essential.
- Reported to work correctly for a number of users.
- Installs as a simple dictionary add-on (no complex features).

### Cons

- Some users report it does not work or call it a scam.
- Installation/visibility confusion — some users cannot find or enable the dictionary after installing.
- Lack of clear instructions/documentation leads to users blaming the developer.

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