Netflix Subtitle Translator Firefox

Netflix Subtitle Translator

Translates Netflix subtitles to your preferred language using OpenAI GPT. Supports 18 languages including Chinese, Japanese, Korean, Spanish, French, German, and more.

Features & Capabilities

Netflix Subtitle Translator uses OpenAI GPT to translate Netflix subtitles into your preferred language in real time — without leaving the Netflix player.

How it works

The extension intercepts the subtitle track playing in the Netflix player, sends the text to OpenAI's API for translation, and displays the result in a clean overlay on top of the video. Translation is buffered progressively to minimise API calls. If your chosen language is already natively available on Netflix, no AI translation is used and no API calls are made.

Supported languages (18)

  • Simplified Chinese (简体中文)
  • Traditional Chinese (繁體中文)
  • Japanese (日本語)
  • Korean (한국어)
  • Spanish (Español)
  • French (Français)
  • German (Deutsch)
  • Portuguese (Português)
  • Italian (Italiano)
  • Russian (Русский)
  • Arabic (العربية)
  • Hindi (हिन्दी)
  • Thai (ภาษาไทย)
  • Vietnamese (Tiếng Việt)
  • Indonesian (Bahasa Indonesia)
  • Dutch (Nederlands)
  • Polish (Polski)
  • Turkish (Türkçe)
Features
  • Real-time GPT-powered translation with progressive buffering
  • Customisable subtitle font size and vertical position
  • Adjustable translation look-ahead window (how far ahead subtitles are pre-translated)
  • Pause and resume translation at any time from the popup
  • On-screen AI notice indicator (can be hidden)
  • Optional console and verbose debug logging for troubleshooting
Requirements

An OpenAI API key is required. Enter it once in the extension settings — it is stored locally in your browser and is never shared with anyone other than OpenAI.

Privacy

Subtitle text is sent to the OpenAI API solely for translation. No data is collected or stored by the extension developer.

User Growth & Download Statistics

Manifest V2 Add-on
By:
wugq.dev
Daily users:
10
Version:
1.8 Last updated: 2026-04-15
Version code:
6221654
Creation date:
2026-03-14
Risk:
Very high risk impact High risk likelihood
Permissions:
  • storage
  • tabs
  • contextMenus
  • *://www.netflix.com/*
  • *://*.nflxvideo.net/*
  • *://*.nflxso.net/*
  • *://*.nflxext.com/*
  • https://api.openai.com/*
  • https://api.x.ai/*
Content scripts matches:
  • www.netflix.com
Size:
61.81KB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
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:
wugq.dev
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/netflix-subtitle-translator/
Website:
https://github.com/wugq/netflix-subtitle-translator

Is Netflix Subtitle Translator 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.

Netflix Subtitle Translator 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.
  • Critical ******* ****** ** *** ********* ******** ************ ************** *********** ************ *********** ****
  • 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.

Netflix Subtitle Translator 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 **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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