Glossary: Learn Spanish on Netflix

Tracking since Apr 1, 2026.

Changelog

• Apr 17, 2026
  description

  Glossary turns Netflix into a Spanish learning tool with adaptive subtitles.
  
  Instead of showing the same subtitle treatment for every sentence, Glossary adjusts what you see based on your current level and word knowledge.
  
  How it works:
  
  White words are new words.
  Yellow words are words where you know the translation.
  Green words are known words.
  Display behavior:
  
  If a sentence contains white words, Glossary shows Spanish and English together.
  If a sentence contains yellow words but no white words, Glossary shows Spanish only.
  If a sentence contains only green words, Glossary hides the subtitle line.
  Features:
  
  Passwordless email login
  Required onboarding with initial level selection
  Adaptive subtitle display for Spanish learning
  Quick level updates from the extension popup
  Popup-based setup flow designed for Netflix use
  Progress-aware subtitle behavior instead of static translation
  Current learning setup:
  
  Learning language: Spanish
  Translation language: English
  How to use:
  
  Open a Netflix watch page.
  Open the Glossary extension popup.
  Sign in with your email code.
  Choose your starting level.
  Refresh the Netflix page.
  Start watching with adaptive subtitles.
  Glossary is designed for learners who want less translation when they know a sentence, and more support when they do not.

  Glossary helps you learn Spanish on Netflix with adaptive subtitles.
  
  Instead of showing the same subtitle style for every sentence, Glossary adjusts help line by line. Easier lines can stay hidden so you rely less on translation. Harder lines can show Spanish only or Spanish plus English when you need more support.
  
  What Glossary does:
  • Adapts subtitles line by line for Spanish learners
  • Shows less translation on easier lines
  • Shows more help on harder lines
  • Lets you replay lines and adjust difficulty while watching
  • Works anonymously by default
  • Optional sign-in can be used later to save progress
  
  How to use:
  1. Install the extension in Chrome.
  2. Open a Netflix episode or movie.
  3. Start watching.
  4. Pause any time to adjust difficulty or replay a line.
  
  Current language setup:
  • Learning language: Spanish
  • Translation language: English
  
  Glossary is built for learners who want to spend more time reading and listening in Spanish, without losing support on difficult lines.

• Apr 17, 2026
  short_description

  Replaces Netflix subtitles with adaptive subtitles from the Glossary backend.

  Learn Spanish on Netflix with adaptive subtitles that show more or less help for each line.

• Apr 17, 2026
  name

  Glossary Netflix Subtitles

  Glossary: Learn Spanish on Netflix

Permissions & access

Permissions

storage

Host access

https://www.netflix.com/*, https://*.netflix.com/*, https://www.google-analytics.com/*, https://glossary-95pb.onrender.com/*, http://localhost:8080/*, http://127.0.0.1:8080/*, http://localhost:8081/*, http://127.0.0.1:8081/*

Screenshots