# Readability Score

> Measure how hard a page is to read. Get a live Flesch Reading Ease score, a US grade level, words per sentence, word count and estimated reading time for the whole article or just your selection.

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

## Overview

- **ID:** `readabilityscore`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ZakeraT
- **Category:** web-development,appearance
- **Version:** 2.1
- **Last updated:** 2026-07-12
- **First published:** 2026-07-09
- **Size:** 35 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/readabilityscore/)

## Rankings

- #141,897 — Overall
- #181 — score

## Permissions and access

### Permissions

- `activeTab`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- 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

- [Reading Level Meter](https://chrome-stats.com/d/reading-level-meter)
- [ReadEase: Readability Score Calculator](https://chrome-stats.com/d/readease-readability) — 1 users
- [ReadScore](https://chrome-stats.com/d/readscore) — 28 users
- [Readability](https://chrome-stats.com/d/readability) — 24 users
- [Read Score](https://chrome-stats.com/d/read-score) — 24 users
- [TextGrade](https://chrome-stats.com/d/textgrade) — 28 users
- [FleschCalc](https://chrome-stats.com/d/fleschcalc) — 28 users
- [Text Grade](https://chrome-stats.com/d/text-grade) — 24 users
- [Reading Time Estimator](https://chrome-stats.com/d/readingtimeestimator) — 2 users
- [Reading Time Estimator](https://chrome-stats.com/d/reading-time-estimator) — 1 users
- [Grammar & Readability Checker](https://chrome-stats.com/d/grammar-readability-checker)
- [Text Density Analyzer](https://chrome-stats.com/d/text-density-analyzer)

---

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