LR Dual Subtitles for YouTube by LR
Learn with YouTube dual subtitles on Firefox for Android. Tap words for meanings and replay sentences. Independently maintained; a paid activation code is required.
Some features may require paymentSome features may require payment
Available on Firefox for Android™Available on Firefox for Android™
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Extension Metadata
About this extension
LR by drip7boi brings YouTube dual subtitles to Firefox for Android.
Look up words and replay sentences while learning with videos.
Use it inside Firefox on your Android phone or tablet; it does not run inside the YouTube app.
A PAID ACTIVATION CODE IS REQUIRED
Please read the purchase information before installing: https://lr.491746.xyz/buy/?source=android_amo_description
An activation code for this build does not include an upstream Language Reactor subscription. Translation, account features and saved words may depend on upstream services and a separate account.
LEARN ONE SENTENCE AT A TIME
Compare bilingual subtitles to follow the original speech and its translation. Use word lookup for unfamiliar vocabulary and sentence replay for focused listening practice. These tools support language learning, including English learning with YouTube. Subtitle translation depends on available captions and services; some videos and page types may not work.
GET STARTED
1. Install and enable the extension in Firefox for Android.
2. Open YouTube in Firefox and enter your paid activation code when prompted.
3. Open a captioned video, select subtitle languages, then check that subtitles and translation are visible.
4. Tap a word and replay one sentence.
SUPPORT AND LIMITS
A loaded panel does not necessarily mean subtitles or translation loaded successfully. Check captions, language settings and account sign-in first. If activation cannot connect, check your network and retry; do not repeatedly uninstall or purchase another code. Android device compatibility still requires testing.
INDEPENDENT COMPATIBILITY BUILD
This is an independently maintained compatibility version by drip7boi, not an official Language Reactor release. It is not affiliated with or endorsed by Language Reactor. Firefox and YouTube are named only to describe compatibility.
If you leave a review, please describe your actual device and experience. Do not include activation codes, account details or private diagnostic information.
Look up words and replay sentences while learning with videos.
Use it inside Firefox on your Android phone or tablet; it does not run inside the YouTube app.
A PAID ACTIVATION CODE IS REQUIRED
Please read the purchase information before installing: https://lr.491746.xyz/buy/?source=android_amo_description
An activation code for this build does not include an upstream Language Reactor subscription. Translation, account features and saved words may depend on upstream services and a separate account.
LEARN ONE SENTENCE AT A TIME
Compare bilingual subtitles to follow the original speech and its translation. Use word lookup for unfamiliar vocabulary and sentence replay for focused listening practice. These tools support language learning, including English learning with YouTube. Subtitle translation depends on available captions and services; some videos and page types may not work.
GET STARTED
1. Install and enable the extension in Firefox for Android.
2. Open YouTube in Firefox and enter your paid activation code when prompted.
3. Open a captioned video, select subtitle languages, then check that subtitles and translation are visible.
4. Tap a word and replay one sentence.
SUPPORT AND LIMITS
A loaded panel does not necessarily mean subtitles or translation loaded successfully. Check captions, language settings and account sign-in first. If activation cannot connect, check your network and retry; do not repeatedly uninstall or purchase another code. Android device compatibility still requires testing.
INDEPENDENT COMPATIBILITY BUILD
This is an independently maintained compatibility version by drip7boi, not an official Language Reactor release. It is not affiliated with or endorsed by Language Reactor. Firefox and YouTube are named only to describe compatibility.
If you leave a review, please describe your actual device and experience. Do not include activation codes, account details or private diagnostic information.
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access your data for all websites
Optional permissions:
- Access your data for i.ytimg.com
- Access your data for kfbgxdjuarsjzepfpsdl.supabase.co
- Access your data for lr.491746.xyz
Required data collection, according to the developer:
- Authentication information
- Website content
More information
- Add-on Links
- Version
- 6.0.0
- Size
- 3.96 MB
- Last updated
- 17 days ago (Aug 31, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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