AI Subtitles & Immersive Translate - Trancy

Name: AI Subtitles & Immersive Translate - Trancy
Rating: 4.0323 (62 reviews)
Author: Trancy

By: Trancy Add-on

Trancy provides bilingual subtitle for platforms like YouTube, Disney+... as well as AI translator for websites.

Overview

Firefox Add-ons Store

Daily users

4,832 ▲ 3

Data as of 2026-07-28

Rating:

4.03

(62)

Version:

7.9.0

Last updated: 2026-07-23

Features & Capabilities

Trancy turns everyday video watching and browsing into an immersive language-learning experience. Install the extension to get AI-powered bilingual subtitles on platforms like YouTube, Disney+, TED, Coursera and more, with multiple viewing and practice modes, AI captions, grammar analysis, and pronunciation options. Trancy helps you understand content in context while building listening and speaking skills naturally.

Beyond videos, Trancy offers immersive web translation with contextual contrast or full-text replacement, word and sentence translation, AI-generated definitions, and highlighted new words. Collect words, sentences, and videos to build a personal study library, use oral assessment and Microsoft pronunciation playback, and tap the AI assistant or external dictionaries to reinforce learning. Fast to use and customizable, Trancy is made for learners who want steady progress while enjoying the content they love.

User Growth & Download Statistics

Add-on AI GenAI Education Communication

By:

Trancy

Daily users:

4,832 3

Rating:

4.03

(62)

Version:

7.9.0 Last updated: 2026-07-23

Version code:

6370236

Creation date:

2023-12-26

Risk:

Permissions:

Content scripts matches:

youtube.com
m.youtube.com
www.youtube.com
netflix.com
www.netflix.com
www.coursera.org
coursera.org
www.udemy.com
udemy.com
*.udemy.cn

Size:

5.77MB

Email:

su*****@trancy.org

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-28

Compare stats and ranking:

Ranking

# 1,180 ▼ 6

Other rankings

#45 in Language Support ▼ 1

#193 in Photos, Music & Videos ▼ 1

#25 in ai keyword 87

#30 in translate keyword 77

#41 in platform keyword 19 ▼ 1

Upgrade to see more rankings

Other platforms

Trancy - AI Translator & Dual Subtitles (v7.9.0)

300,000 4.70

(2,745)

Trancy - Immersive Translate & Language Learning (v7.9.0)

88,758 4.50

(176)

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:

Trancy

Firefox Add-ons Store

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

Email:

su*****@trancy.org

Website:

https://www.trancy.org/chat

Permission Change History

2024-04-30: Version 4.0.0 → 4.0.1

Add Permissions: unlimitedStorage

User Reviews

Users praise the app for its clean UI and promising AI subtitles that improve upon traditional subs, plus useful learning features and affordable pricing. However, reliability is a recurring concern: several reviews report not working after updates, blank translations (Netflix), and issues with certain videos (live streams) or UI interference on YouTube. The tool shows strong potential for learning immersion but reliability issues are its main drawback.

Pros

Clean, simple, and user-friendly interface.
High-quality AI subtitles with translations that are a vast improvement over traditional subtitles.
Free base version with an affordable Pro option and built-in learning tools (dictionary options, deck creation) for immersion.
One-stop immersion tool for language learning through media and spaced repetition vocabulary review.
Overall positive user experience and potential for learning improvement.

Cons

Not functioning reliably across sites and after updates; reports of translations going blank and features not working (e.g., Netflix subtitles).
Does not support YouTube live videos.
Can lag on platforms like YouTube.
Enabling the extension can break YouTube UI by hiding comments and the left sidebar.

Recent reviews

by Na*****, 2026-06-18

by Sa*****, 2026-06-08

View all user reviews ›

Is AI Subtitles & Immersive Translate - Trancy 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.

AI Subtitles & Immersive Translate - Trancy 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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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.

AI Subtitles & Immersive Translate - Trancy is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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