# WAVE Accessibility Extension

> Evaluate web accessibility within the Firefox browser. When activated, the WAVE extension injects icons and indicators into your page to give feedback about accessibility and to facilitate manual evaluation.

Canonical page: [https://chrome-stats.com/d/wave-accessibility-tool](https://chrome-stats.com/d/wave-accessibility-tool)

## Overview

- **ID:** `wave-accessibility-tool`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** WebAIM
- **Category:** web-development,appearance
- **Daily users:** 23,649
- **Weekly downloads:** 341
- **Rating:** 4.75 / 5 (55 ratings)
- **Version:** 3.3.1.0
- **Last updated:** 2026-05-14
- **First published:** 2017-01-12
- **Size:** 441 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/wave-accessibility-tool/)
- **Website:** [https://wave.webaim.org/](https://wave.webaim.org/)

## Description

The WAVE Accessibility Extension empowers users to assess web accessibility effortlessly within the Firefox browser. Once activated, it overlays icons and indicators directly on web pages, providing immediate visual feedback to identify potential accessibility issues. This tool is invaluable for developers, designers, and accessibility professionals aiming to create inclusive, barrier-free web content. By facilitating manual evaluation alongside automated insights, WAVE helps ensure websites comply with accessibility standards and improve user experience for all visitors.

## Rankings

- #466 — Overall
- #36 — Web Development
- #76 — Appearance
- #3 — free access
- #4 — visibility
- #16 — extension

## Permissions and access

### Permissions

- `activeTab`
- `contextMenus`
- `scripting`
- `webNavigation`

### Host permissions

- `file:///*`
- `http://*/*`
- `https://*/*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate 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 medium 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).

## Review summary

Users consistently praise the extension for being easy to use, giving clear guidance to fix problems, and reliably detecting common accessibility issues. Multiple reviewers note it works where the web WAVE tool cannot (localhost or protected sites). Overall sentiment is positive and recommended; no widely repeated negatives appear in these reviews.

### Pros

- Easy to use with clear, actionable guidance (multiple reviewers)
- Quickly finds common/basic accessibility issues (multiple reviewers)
- Works in situations the WAVE web tool can't — e.g., localhost or sites behind protective layers (mentioned more than once)
- Generally well liked and recommended by users

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