# SpotDiff

> Compare two images with a before/after slider directly in the browser popup. Load from local files or URLs. Save last settings.

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

## Overview

- **ID:** `spotdiff`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Duc
- **Category:** other
- **Version:** 1.0
- **Last updated:** 2025-11-07
- **First published:** 2025-11-04
- **Size:** 12 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/spotdiff/)

## Description

SpotDiff — Compare two images directly in the browser: Concept: Drag two images into a popup, the extension allows you to slide the bar to compare the differences (before/after slider). Features: load local or URL, save settings. Unique: like “before-after image slider” but a lightweight extension. Difficulty: low-medium.

## Rankings

- #134,255 — Overall

## Permissions and access

### Permissions

- `storage`

### Host permissions

- `<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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- [HoverCompare Pro](https://chrome-stats.com/d/hovercompare-pro)
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Source: [Chrome-Stats](https://chrome-stats.com/d/spotdiff)