# DiffSpotter

> Highlight differences in content and layout between web pages

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

## Overview

- **ID:** `diffspotter`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** 99OK
- **Category:** web-development
- **Daily users:** 1
- **Version:** 1.0
- **Last updated:** 2024-08-28
- **First published:** 2024-08-27
- **Size:** 21 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/diffspotter/)

## Description

Save the current state of a web page.
Compare the current state with a previously saved state, highlighting differences.
Toggle between the diff view and the original view.
Keyboard shortcuts for quick access (Ctrl+Alt+D for toggle diff, Ctrl+Alt+S for save page).
Capture screenshots of the diff view.
Compare specific elements using CSS selectors.

## Rankings

- #97,312 — Overall
- #141 — hot spot

## Permissions and access

### Permissions

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

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High 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/diffspotter)