Dualsub - Dual Subtitles for YouTube

Display dual subtitles, use machine translation and speech recognition to generate subtitles.
What is Dualsub - Dual Subtitles for YouTube?
Dualsub - Dual Subtitles for YouTube is a Firefox add-on that allows users to display dual subtitles on YouTube videos, using machine translation and speech recognition to generate subtitles. It supports various browsers and video websites, with different modes catering to different user scenarios. For more information, visit https://www.dualsub.xyz/.
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Add-on stats

Users: 4,852 ▲ 39
Rating: 4.37 (99)
Version: 2.47.1 (Last updated: 2024-11-03)
Creation date: 2018-10-03
Weekly download count: 173
Firefox on Android: Yes
Risk impact: Very high risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 3
Permissions:
  • storage
Host permissions:
  • https://api.dualsub.xyz/*
Size: 46.29K
URLs: Website

Ranking

# 1165 ▼ 1
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Other platforms

Dualsub - Dual Subtitles for YouTube (v2.47.1)
3.68 (420) 100,000
Dualsub - Dual Subtitles for YouTube (v2.47.1)
4.20 (40) 44,411
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Add-on summary

Analyze keywords

Use Dualsub to display dual subtitles on YouTube.

Quick Start

Perhaps your requirement is simple: to have YouTube's native subtitles display two languages.

For example, to display subtitles with Chinese on top and English at the bottom:

  1. Open a YouTube video page, and turn on YouTube's native subtitles.
  2. Open the Dualsub popup page, and switch to the Native Mode tab.
  3. On the row 1, the Subtitle File menu, select Chinese.
  4. On the row 2, the Subtitle File menu, select English.

You can select to use human-translated subtitles, or machine-translated subtitles.

See more

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Incredibly useful for learning languages
  • Works well on multiple platforms, including mobile
  • Automatically adds subtitles in chosen languages
  • Wide range of languages available for comparison
  • Simple to use interface
Cons
  • Inconsistent performance with some languages, particularly Russian
  • Requires manual language setting for each video
  • Issues with overlapping subtitles when CC is enabled
  • Lack of a better tutorial for new users
  • Confusion between 'Simple Mode' and 'Standard Mode'
Most mentioned
  • Learning languages
  • Automatic subtitle addition
  • Manual language setting
  • Overlap of subtitles
  • Need for better support and fixing errors
Recent reviews
by Firefox user 18678188, 2024-11-10
Incredibly useful for me learning German!
by Tyrone, 2024-11-10
by Firefox user 18614545, 2024-09-28
View all user reviews

Add-on safety

Risk impact

Dualsub - Dual Subtitles for YouTube requires a lot of sensitive permissions. Exercise caution before installing.

Risk likelihood

Dualsub - Dual Subtitles for YouTube is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details