# FireLens

> Visual impairment simulation and tab-tracker tool to develop for accessibility.

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

## Overview

- **ID:** `firelens`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Francesco De Stefano
- **Category:** web-development
- **Daily users:** 7
- **Version:** 0.0.7
- **Last updated:** 2019-04-09
- **First published:** 2019-04-09
- **Size:** 62 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/firelens/)

## Description

FireLens is a Firefox add-on that offers a visual impairment simulation feature, allowing users to interact with websites as blind or colorblind individuals. It also includes a tab-tracker tool for visually tracking website navigation via keyboard tab button.

## Rankings

- #38,744 — Overall

## Permissions and access

### Permissions

- `tabs`
- `<all_urls>`
- `activeTab`

## Safety

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

## Similar extensions and apps

- [Accessibility Vision Simulator](https://chrome-stats.com/d/accessibility-vision-simulator)
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- [Eye-Able® - Visual Aid](https://chrome-stats.com/d/eye-able) — 64 users, 4.67 / 5
- [Color Blind & Low Vision Simulator](https://chrome-stats.com/d/colorblindfyi) — 17 users
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- [Accessibility Insights for Web](https://chrome-stats.com/d/accessibility-insights-for-web) — 71 users, 1.00 / 5
- [Funkify - Disability Simulator](https://chrome-stats.com/d/funkify-disability-simulator) — 9 users
- [CompatLens](https://chrome-stats.com/d/compatlens)
- [Colour Vision Deficiency Assistant](https://chrome-stats.com/d/color-vision-deficiency-assist) — 1 users
- [LumaLens Accessibility Inspector](https://chrome-stats.com/d/lumalens-a11y-inspector)

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