# Smart Comparison Overlay

> Compare two blocks of text or products side by side using AI-enhanced analysis.

Canonical page: [https://chrome-stats.com/d/smart-comparison-overlay](https://chrome-stats.com/d/smart-comparison-overlay)

## Overview

- **ID:** `smart-comparison-overlay`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Abi Melendez
- **Category:** appearance
- **Version:** 1.0
- **Last updated:** 2025-08-11
- **First published:** 2025-08-08
- **Size:** 11 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/smart-comparison-overlay/)

## Description

Smart Comparison Overlay is a powerful browser extension that lets you compare two sections of content directly inside your browser. Whether you're evaluating two products, pricing tables, or paragraphs of text, this extension displays them side by side and highlights key differences.

With built-in AI-enhanced keyword matching, visual highlighting, and interactive editing, it's the perfect tool for researchers, students, copywriters, and online shoppers.

## Rankings

- #145,593 — Overall
- #15 — copywriting
- #168 — overlay

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `scripting`

### Host permissions

- `<all_urls>`

## 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

- [Smart Contrast Overlay](https://chrome-stats.com/d/smart-contrast-overlay) — 1 users
- [Simple Compare Tool](https://chrome-stats.com/d/simple-compare-tool)
- [ChromeCompare](https://chrome-stats.com/d/chromecompare) — 3 users, 3.00 / 5
- [Smart Overlay Diff Exporter](https://chrome-stats.com/d/smart-overlay-diff-exporter)
- [Compare Text](https://chrome-stats.com/d/compare-text) — 18 users
- [Compact Comparison Overlay](https://chrome-stats.com/d/compact-comparison-overlay)
- [Price Comparison Companion](https://chrome-stats.com/d/price-comparison-companion) — 1 users
- [Comparison Overlay Highlighter](https://chrome-stats.com/d/comparison-overlay-highlighter)
- [ComparePad](https://chrome-stats.com/d/comparepad) — 1 users
- [Smart Shopper Plus](https://chrome-stats.com/d/smart-shopper-plus) — 1 users
- [Compare Text - Find Differences](https://chrome-stats.com/d/compare-text-find-differences)
- [Visual Diff Overlay](https://chrome-stats.com/d/visual-diff-overlay)

---

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