LiveCaption by b-tok
Real-time audio transcription for video streaming sites. Optimized for Japanese anime content.
Extension Metadata
About this extension
LiveCaption captures and transcribes video audio using advanced Whisper AI models, generating subtitle files as you watch. Optimized for Japanese anime with Kotoba Whisper v2.0, it also supports English and 99+ other languages. Subtitles are saved as standard SRT files under ~/Documents/LiveCaption that can be loaded into any video player.
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Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Access browser tabs
- Access your data for sites in the youtube.com domain
- Access your data for sites in the netflix.com domain
- Access your data for sites in the crunchyroll.com domain
- Access your data for sites in the amazon.com domain
- Access your data for sites in the primevideo.com domain
- Access your data for sites in the abema.tv domain
- Access your data for sites in the nicovideo.jp domain
- Access your data for sites in the bilibili.com domain
- Access your data for sites in the twitch.tv domain
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.1
- Size
- 26.63 KB
- Last updated
- 17 days ago (Dec 4, 2025)
- Related Categories
- License
- MIT License
- Version History
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