# QA overlays

> In-browser QA overlays: measure, guides, grids, accessibility.

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

## Overview

- **ID:** `qa-overlays`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Marcin
- **Category:** web-development,appearance
- **Version:** 1.0.0
- **Last updated:** 2026-07-12
- **First published:** 2026-07-09
- **Size:** 193 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/qa-overlays/)

## Description

Measure, align, grid & audit any web page: rulers, smart guides, box-model inspection & axe-core accessibility checks.

## Rankings

- #140,259 — Overall
- #158 — overlay

## Permissions and access

### Permissions

- `storage`
- `tabs`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High 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 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/qa-overlays)