Diacritics & Grammar Fix

Name: Diacritics & Grammar Fix
Rating: 5 (1 reviews)
Author: COPLAS Technlologies, s.r.o.

By: COPLAS Technlologies, s.r.o. Add-on

Fix diacritics and graFix diacritics and grammar in selected text on any webpage using AI. mmar in selected text using AI (Claude, ChatGPT, Gemini)

Download

Install

Features & Capabilities

Fix diacritics and grammar in selected text on any webpage using AI.

Select text, right-click and choose "Fix diacritics & grammar" - or press Ctrl+Shift+D. The AI corrects the text and replaces it directly in editable fields, or shows a popup with the corrected version for copying.

Supported AI providers:

Google Gemma 3 27B (FREE - no credit card needed!)
Google Gemini 2.5 Flash / Pro
Claude (Anthropic) - Haiku, Sonnet
ChatGPT (OpenAI) - GPT-4o Mini, GPT-4o

How to use:

Install the extension and open Settings
Choose an AI provider and paste your API key
Select text on any webpage
Right-click -> "Fix diacritics & grammar" (or Ctrl+Shift+D)
Corrected text replaces the original or appears in a popup

Features:

Works in textarea, input fields, email compose (Gmail), contenteditable, and any editable content
Keyboard shortcut: Ctrl+Shift+D
Correction languages: Slovak, Czech, English, German, Hungarian, Polish
Your own API key - you control costs
Diff view - see exactly what changed
Dark theme UI
No data collection, no analytics, no tracking
API keys stored locally in your browser only

Ideal for:

Writing emails in languages with diacritics (Slovak, Czech, Polish, Hungarian, German)
Fixing text typed without diacritics on an English keyboard
Quick grammar corrections in any language

User Growth & Download Statistics

Add-on

By:

COPLAS Technlologies, s.r.o.

Daily users:

Rating:

5.00

(1)

Version:

1.0.0 Last updated: 2026-04-12

Version code:

6214191

Creation date:

2026-04-09

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

42.75KB

Email:

pa*****@gmail.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-14

Compare stats and ranking:

Ranking

# 50,693 ▼ 31

Other rankings

#25 in grammar keyword 69 #33 in ai grammar keyword 81

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

COPLAS Technlologies, s.r.o.

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/diacritics-grammar-fix/

Email:

pa*****@gmail.com

Is Diacritics & Grammar Fix Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Diacritics & Grammar Fix requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Diacritics & Grammar Fix is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******