# Image Ruler Overlay

> Thêm thước đo lên hình ảnh để đo pixel trực tiếp.

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

## Overview

- **ID:** `image-ruler-overlay`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Doi
- **Category:** other
- **Daily users:** 1
- **Version:** 1.0
- **Last updated:** 2025-07-15
- **First published:** 2025-07-12
- **Size:** 9.40 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/image-ruler-overlay/)

## Description

Image Ruler Overlay: Add ruler directly to any image. Easily measure dimensions, pixel distances without dev tools. Useful for web design & quick photo editing.

## Rankings

- #102,172 — Overall
- #110 — overlay

## Permissions and access

### Permissions

- `activeTab`

### 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/image-ruler-overlay)