NghienDeutsch Firefox

NghienDeutsch

Learn German with bilingual subtitles, shadowing & pronunciation scoring, AI translation and vocabulary — on YouTube & Netflix.
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Features & Capabilities

NghienDeutsch is an all-in-one German learning and translation tool that lets you both read bilingual content and effectively practice your Listening, Speaking and Vocabulary skills — completely free.

📣 NghienDeutsch German-learning extension for Chrome ⭐⭐⭐⭐⭐

📣 A smart translation tool that puts user privacy first

📣 NEW: AI glossary — personalize translations with your own vocabulary set

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💻 Key features

🎞 Bilingual subtitles for video

🚀 Automatic video translation: Generate bilingual subtitles for platforms such as YouTube, Netflix and more, so you can easily understand the content and learn German naturally with a single click

🚀 Bilingual content display: The tool automatically detects the main content of a web page and shows the original and the translation side by side, for a smooth, uninterrupted reading experience

🚀 Hover to translate: Just move your mouse over any word or phrase and the translation appears instantly. You can also save important words to review later

🚀 Context-accurate translation: More than a dictionary — NghienDeutsch gives context-based explanations that help you grasp the exact meaning of a word in each specific sentence

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🗣 Shadowing practice

🚀 Practice speaking sentence by sentence with detailed per-word pronunciation scoring, helping you improve your speaking and pronounce like a native speaker

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🎧 Listening practice

🚀 Listen & dictate: Content is automatically split into individual sentences, making it easy to follow and to practice listening effectively

🚀 Listen & fill in the blanks: Varied exercises from easy to hard train your listening comprehension and help you memorize vocabulary by filling in the missing words

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📚 Grow your vocabulary

🚀 Save vocabulary quickly: Save any word you come across while learning with a single simple action

🚀 Remember effectively: A system of games and exercises lets you review vocabulary actively, so you avoid learning something and forgetting it right after

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👨🏻🔬 Exclusive AI translation features

🚀 AI persona: Assign a domain-expert role to the AI to get translations tailored to each specific field

🚀 AI glossary: Build a personal dictionary so the AI uses exactly the terms you want, improving consistency and accuracy

🚀 Context-aware translation: The system analyzes the whole content before translating to deliver the most natural, faithful result (currently in Beta)

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🔒 Privacy comes first

NghienDeutsch is committed to protecting user data.

🛡 No data storage: We do not keep any content you translate

🛡 No data used for AI training: Every request and translation result is neither stored nor used for training purposes

🛡 End-to-end encryption: All data is encrypted during transmission and processing to ensure absolute safety

We do not collect unnecessary personal data and never share or sell your information

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📧 Contact us

🚀 If you have any questions or suggestions, don't hesitate to reach out:

🌐 Website: https://nghiendeutsch.app 💬 Support: support@nghiendeutsch.app 🛠 Technical contact: it@nghiendeutsch.app ━━━━━━━━━━━━━━━━━━━━━━

❤ Our mission: To help you break through the language barrier and access global knowledge easily, naturally and with inspiration

User Growth & Download Statistics

Manifest V3 Add-on
By:
NghienDeutsch
Daily users:
13 12
Version:
2.8.24 Last updated: 2026-08-03
Version code:
6387302
Creation date:
2026-07-31
Risk:
Very high risk impact High risk likelihood
Permissions:
Host permissions:
  • https://*.huggingface.co/*
  • https://*.hf.co/*
  • https://*.xethub.hf.co/*
  • https://api.mymemory.translated.net/*
  • https://api.dictionaryapi.dev/*
  • https://*.wiktionary.org/*
  • https://translate.googleapis.com/*
  • https://clients5.google.com/*
  • https://lingva.ml/*
  • https://lingva.dialectapp.org/*
  • See more
Content scripts matches:
  • www.youtube.com
  • m.youtube.com
  • www.netflix.com
Size:
18.43MB
Email:
su*****@nghiendeutsch.app
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-08-14
Compare stats and ranking:

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:
NghienDeutsch
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/nghiendeutsch/
Email:
su*****@nghiendeutsch.app
Website:
https://nghiendeutsch.app

Is NghienDeutsch 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.

NghienDeutsch requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • 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.

NghienDeutsch is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
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