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Preview of Chinese Sensim

Chinese Sensim by Justin

Learn Mandarin passively while you browse. Words replace themselves quietly as you browse.

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Available on Firefox for Android™Available on Firefox for Android™
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About this extension
Chinese Sensim transforms the web into a slow, living immersion in Mandarin Chinese. As you browse news sites, social media, forums, AI chatbots, and everyday webpages, familiar English words gradually become Mandarin phonetics written for English speakers to pronounce naturally. No lessons. No flashcards. No separate app demanding your attention. The language simply begins appearing inside the text you already read every day.

Three new Mandarin words unlock every midnight. Each word replaces entire clusters of meaning at once, so “say,” “said,” “tell,” “told,” and “speak” all become the same Mandarin sound across the web. Miss one day, nothing happens. Miss several, and a few words quietly fade back, encouraging steady immersion without pressure.

“Sensim” comes from the Latin word for “gradually,” and that philosophy shapes everything. Instead of forcing study sessions, Chinese Sensim lets Mandarin settle into your mind naturally through repetition, curiosity, and daily exposure.

Built around English-readable Putonghua pronunciation, the extension contains 3,000 Mandarin words spread across 1,000 days of growth. It is designed for heritage learners, diaspora communities, lovers of Chinese culture, and anyone drawn to the depth of one of humanity’s oldest continuous civilizations and its billion living voices.

中文万岁.
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Permissions and data

Required permissions:

  • Display notifications to you
  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.

Optional data collection, according to the developer:

  • Technical and interaction data
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Version
2.9.0
Size
62.06 KB
Last updated
5 days ago (May 26, 2026)
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