# Page Ruler

> Measure elements on any webpage with pixel-perfect rulers and dimension tools

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

## Overview

- **ID:** `pageruler`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Preventcovidu
- **Category:** other
- **Daily users:** 1
- **Version:** 1.0.0
- **Last updated:** 2026-02-21
- **First published:** 2026-02-18
- **Size:** 20 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/pageruler/)

## Rankings

- #105,125 — Overall

## Permissions and access

### Permissions

- `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).

## Similar extensions and apps

- [Page Ruler Tool](https://chrome-stats.com/d/page-ruler-tool) — 1 users
- [Layout Ruler](https://chrome-stats.com/d/layout-ruler)
- [Pixel Ruler](https://chrome-stats.com/d/pixelsruler) — 7 users, 1.00 / 5
- [Page Ruler](https://chrome-stats.com/d/page-ruler-spy) — 11 users
- [Page Ruler V2 cm](https://chrome-stats.com/d/page-ruler-v2-cm) — 1 users
- [Trust Wallet](https://chrome-stats.com/d/pixel-ruler-tool) — 7 users, 1.38 / 5
- [Rabby Wallet](https://chrome-stats.com/d/pixels-ruler-tool) — 7 users, 2.92 / 5
- [Easy Pixel Ruler](https://chrome-stats.com/d/easy-pixel-ruler) — 23 users
- [Page Ruler](https://chrome-stats.com/d/page-ruler) — 3,440 users, 4.33 / 5
- [Screen and Pixel Ruler](https://chrome-stats.com/d/screen-and-pixel-ruler) — 7 users
- [Pixel Ruler Overlay](https://chrome-stats.com/d/pixel_ruler_overlay) — 23 users
- [Pixel Measurement Tool](https://chrome-stats.com/d/pixel-measurement-tool) — 132 users

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