# Sizzy

> The responsive design browser (sizzy.co)

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

## Overview

- **ID:** `sizzy-app`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Sizzy
- **Category:** web-development
- **Daily users:** 10
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0
- **Last updated:** 2020-01-30
- **First published:** 2020-01-30
- **Size:** 34 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/sizzy-app/)
- **Website:** [https://sizzy.co](https://sizzy.co/)

## Description

Sizzy is a browser made specifically for responsive development. It allows you to preview a website on multiple devices at once. The Sizzy Firefox Extension is an addition to the app that opens the current URL in Sizzy.

## Rankings

- #32,954 — Overall
- #123 — response

## Permissions and access

### Permissions

- `tabs`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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/sizzy-app)