# Instant Format Previewer

> Preview converted images before saving them to your device.

Canonical page: [https://chrome-stats.com/d/instant-format-previewer](https://chrome-stats.com/d/instant-format-previewer)

## Overview

- **ID:** `instant-format-previewer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Marcel Williams
- **Category:** photos-music-videos
- **Version:** 1.1
- **Last updated:** 2026-01-04
- **First published:** 2026-01-01
- **Size:** 21 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/instant-format-previewer/)

## Description

Get a real-time preview of how your image will look in different formats. Compare quality and size before downloading to make sure you’re saving the version that fits your needs.

## Rankings

- #144,245 — Overall

## Permissions and access

### Permissions

- `contextMenus`
- `activeTab`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## 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 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/instant-format-previewer)