ReadLingo

Name: ReadLingo
Author: KSTR

Learn languages while you browse. Translate words, generate sentences with AI, organize decks of cards, and review with spaced repetition.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-09-12

Version:

1.0.4

Last updated: 2026-04-30

Features & Capabilities

ReadLingo turns your everyday browsing into language practice. Select any word on a webpage, see its translation instantly, and save it as a flashcard to review later with spaced repetition.

HOW IT WORKS

Select any word on a webpage and right-click → ReadLingo: Translate
See the translation, IPA pronunciation, and example sentences
Save the word as a flashcard with one click
Review with spaced repetition to memorize long-term

FREE FEATURES • Instant word translation (100+ languages) • Save unlimited words as flashcards • Spaced repetition review system (SM-2 algorithm, like Anki) • IPA phonetic transcription • Text-to-speech pronunciation • Highlight saved words on webpages • Color-coded decks per language • Import and export CSV • Dark and light themes • Interface in 16 languages

PREMIUM FEATURES ($3/month) • AI-powered example sentences (contextual, natural usage) • Custom color-coded decks • Export to Anki format • Cloud sync across devices • Advanced SRS settings • Priority support

SUPPORTED LANGUAGES English, Spanish, French, German, Italian, Japanese, Korean, Chinese, Russian, Arabic, Hindi, Turkish, Polish, Dutch, Swedish, Portuguese, and 100+ more for translation.

INTERFACE LANGUAGES English, Português, Español, Français, Deutsch, Italiano, 日本語, 한국어, 中文, Русский, العربية, हिन्दी, Türkçe, Polski, Nederlands, Svenska

PRIVACY ReadLingo does not collect your browsing history. Only the words you choose to save are stored. Your data stays in your browser (local storage) unless you enable cloud sync with a premium account.

Learn more: https://readlingo.app/privacy

SUPPORT Contact: contact@readlingo.app Website: https://readlingo.app

User Growth & Download Statistics

Add-on

By:

KSTR

Daily users:

Version:

1.0.4 Last updated: 2026-04-30

Version code:

6236709

Creation date:

2026-04-27

Firefox add-on GUID:

readlingo@readlingo.app

Firefox add-on numeric ID:

3005981

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Host permissions:

https://api.readlingo.app/*

Content scripts matches:

api.readlingo.app

Size:

493.50KB

Email:

co*****@readlingo.app

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-12

Compare stats and ranking:

Ranking

# 55,733 ▲

Other rankings

#250 in flashcards keyword 13 ▲

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:

KSTR

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/readlingo/

Email:

co*****@readlingo.app

Website:

https://readlingo.app

Is ReadLingo 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.

ReadLingo requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Low ******* ****** ** *** ********* ******** *************

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.

ReadLingo may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

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