# Korektor Spellchecker

> Allow using Korektor service on editable controls.

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

## Overview

- **ID:** `korektor-spellchecker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Milan Straka
- **Category:** language-support
- **Daily users:** 45
- **Rating:** 3.00 / 5 (2 ratings)
- **Version:** 2.0.0
- **Last updated:** 2026-07-22
- **First published:** 2015-08-08
- **Size:** 39 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/korektor-spellchecker/)

## Description

Korektor Spellchecker is a Firefox add-on that enables the use of the Korektor service for spellchecking and grammar checking on any editable input fields of web pages. It provides options to directly correct the content or view suggested corrections. The extension is compatible with various sites but may encounter issues on untested platforms.

## Rankings

- #17,072 — Overall
- #36 — ai spelling checker
- #36 — spelling checker
- #39 — ai spell checker
- #39 — spell checker
- #188 — service

## Permissions and access

### Permissions

- `activeTab`
- `contextMenus`
- `scripting`

### Host permissions

- `https://lindat.mff.cuni.cz/`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Request access to the following domains: cuni.cz
- 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/korektor-spellchecker)