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Preview of Dualsub - Dual Subtitles for YouTube

Dualsub - Dual Subtitles for YouTube by Dualsub Studio

Display dual subtitles on video websites.

Available on Firefox for Android™Available on Firefox for Android™
4.3 (114 reviews)4.3 (114 reviews)
4,438 Users4,438 Users
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About this extension
Display dual subtitles on video websites.

Originally designed for YouTube, now supports multiple video websites, full list.

Uses a standalone subtitle renderer that doesn't affect the video website's built-in subtitle functionality.

Less than 40KB, lightweight, simple, and efficient.
Rated 4.3 by 114 reviewers
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Permissions and dataLearn more

Required permissions:

  • Access your data for sites in the dualsub.xyz domain
  • Access your data for www.youtube.com
  • Access your data for m.youtube.com
  • Access your data for www.ardmediathek.de
  • Access your data for www.bilibili.com
  • Access your data for www.coursera.org
  • Access your data for www.iflix.com
  • Access your data for www.iq.com
  • Access your data for www.udemy.com
  • Access your data for www.viki.com
  • Access your data for www.youku.tv
  • Access your data for www.zdf.de
  • Access your data for wetv.vip
More information
Add-on Links
  • Homepage
  • Support site
Version
2.62.3
Size
35.6 KB
Last updated
a month ago (Jul 19, 2025)
Related Categories
  • Language Support
  • Photos, Music & Videos
License
All Rights Reserved
Version History
  • See all versions
Tags
  • streaming
  • translate
  • youtube
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Release notes for 2.62.3
  • Maintenance update.
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