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CaptionGo – Live Captions & Dual Subtitles version history - 22 versions

CaptionGo – Live Captions & Dual Subtitles by RabbitPair

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CaptionGo – Live Captions & Dual Subtitles version history - 22 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 1.0.22

    Released 20 Aug 2026 - 2.95 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • In-page menu now includes a Message Center for viewing promotions and notifications directly on-site
    • Fixed ASR status icon overlapping with the video button, making it unclickable
    • Faster subtitle tracking — reduces delay when page subtitles update

    Source code released under All Rights Reserved

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  • Older versions

    Version 1.0.21

    Released 18 Aug 2026 - 2.4 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Renamed "Built-in AI" to "Browser AI Translation" for better clarity
    • Improved Browser AI Translation stability with reduced memory usage from translation models
    • Better progress notifications during translation model downloads
    • Enhanced video detection: automatically scans pages and inserts subtitle buttons when streaming requests are detected, improving compatibility with modal popups and dynamically loaded videos
    • Fixed apostrophes and special characters occasionally displaying as garbled text in translation results
    • Improved ASR error messages for protected videos with step-by-step guidance: prompts users to click the extension icon for authorization before retrying, and suggests disabling hardware acceleration when audio capture is silent
    • Fixed Pre-download mode wasting bandwidth and CPU on DRM-encrypted videos (Widevine/PlayReady) by automatically falling back to realtime capture

    Source code released under All Rights Reserved

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  • Version 1.0.20

    Released 16 Aug 2026 - 2.39 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • CaptionGo AI Translation: try AI-powered translation instantly without any configuration
    • Predownload mode for Live Captions — full video captions prepared in advance for smoother playback
    • RTL language support (Arabic, Hebrew) for subtitle display
    • Live Captions now auto-retries on unexpected disconnections — fewer interruptions
    • Shows a Retry button when Live Captions stops unexpectedly
    • Faster wrong-language detection with quick language switch prompt
    • Shows "All captions ready" status when predownload completes
    • Better language auto-detection accuracy
    • Fixed Live Captions stopping silently without any user notification
    • Fixed Live Captions remaining in active state after background connection drops

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.19

    Released 23 Jul 2026 - 2.36 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bugfix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.18

    Released 20 Jul 2026 - 2.36 MB
    Works with firefox 140.0 and later, android 142.0 and later
    Fixed an issue where videos were incorrectly hidden when native subtitles were hidden on some websites.

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.17

    Released 20 Jul 2026 - 2.36 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bugfix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.16

    Released 18 Jul 2026 - 2.36 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bugfix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.15

    Released 18 Jul 2026 - 2.36 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Bilingual subtitle support for Reddit videos
    • Bilingual subtitle support for YouTube embedded players (iframe embed)
    • Fixed duplicate subtitles when both bilingual captions and the player's native captions are enabled

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.14

    Released 15 Jul 2026 - 2.35 MB
    Works with firefox 140.0 and later, android 142.0 and later
    add more languages

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.13

    Released 12 Jul 2026 - 1.94 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Mux Player support for education platforms like codewithantonio.com, m.academy, and laracasts.com
    • Bilingual subtitle translation for non-traditional learning platforms like Scrimba
    • Fixed subtitle button not showing on certain video players

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.12

    Released 12 Jul 2026 - 1.94 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Expanded subtitle support for more video sites (BBC, Paramount+, Plex, MUBI, Naver TV, Weverse, HIDIVE, Peacock, NowTV, etc.)
    • Fixed subtitles not displaying correctly on certain news sites (e.g. ABC News)
    • Fixed "Page Subtitle" mode not showing subtitles on some sites
    • Better subtitle detection on sites where the player loads slowly

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.11

    Released 11 Jul 2026 - 1.93 MB
    Works with firefox 140.0 and later, android 142.0 and later
    Proactively shows "Translation skipped" when the video language matches your target language

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.10

    Released 9 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    Fixed an issue where custom fonts in Firefox were not working correctly.

    Fixed an issue where buttons on some sites were displayed in the wrong position.

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.9

    Released 8 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    Fixed an issue where the correct subtitle track was not correctly selected when automatically displaying bilingual subtitles on the Twitter timeline.

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.8

    Released 7 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bugfix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.7

    Released 6 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bugfix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.6

    Released 6 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Floating button now shows on hover and hides automatically when the cursor moves away, reducing video obstruction
    • Removed the always-visible browser-side floating button; now shows a quick-access button on each video instead
    • Fixed touch interaction issues with the floating button on mobile devices
    • Fixed login button requiring long press to respond when using with Gestify in mobile fullscreen
    • Fixed multiple login windows opening when multiple RabbitPair extensions are installed

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.4

    Released 4 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    Improve the stability of subtitle recognition

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.3

    Released 2 Jul 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    bufix

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.2

    Released 29 Jun 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Fixed subtitles being lost after exiting fullscreen, unable to recover when re-entering fullscreen
    • Fixed fullscreen menu button not showing or appearing in wrong position on certain websites
    • Fixed fullscreen menu button not showing after navigating to a new video within the same page
    • Extended subtitle cache duration for uninterrupted viewing of long videos

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.1

    Released 29 Jun 2026 - 1.92 MB
    Works with firefox 140.0 and later, android 142.0 and later
    • Fixed an issue where the CaptionGo menu button could not be tapped when watching video in fullscreen on Android Firefox
    • Fixed bilingual subtitle detection failing on certain websites (e.g. React/SPA-based streaming sites)
    • Fixed subtitle loading failures on Firefox
    • Fixed original subtitles still showing after bilingual captions are enabled
    • Improved subtitle experience on X (Twitter) timeline videos
    • Expanded subtitle support for more websites

    Source code released under All Rights Reserved

    Download file

  • Version 1.0.0

    Released 25 Jun 2026 - 1.91 MB
    Works with firefox 140.0 and later, android 142.0 and later
    First release of CaptionGo — bilingual subtitles and real-time AI captions for any video, on PC and mobile browsers.

    • Bilingual subtitles: Automatically show "original + translation" on web videos, or view translation-only or original-only; works on major platforms like YouTube, Netflix, Disney+, Hulu, and Bilibili as well as ordinary web videos, and hides the site's own subtitles to avoid overlap.
    • Smart sentences: Automatically merges fragmented, word-by-word captions into smooth, complete sentences.
    • Real-time voice captions: Turn speech into subtitles and translate them even for videos without captions. Use the built-in service for free, or add your own Deepgram key / connect a local transcription backend — 50+ languages supported.
    • Multiple translation services: Built-in free translation via Google, Microsoft, Yandex, and Chrome; or connect AI models like OpenAI, Claude, Gemini, and Ollama with a customizable translation style. Automatically falls back to a backup service when the current one is unavailable.
    • Meeting captions: Automatically display a translation beneath the captions in Zoom, Microsoft Teams, Google Meet, and Twitter Spaces (off by default; turn on the meeting's own captions first).
    • Rich caption styling: Freely adjust font, size, color, stroke, background, and position; style the original and translation separately; drag to reposition and remember it per site.
    • Floating button: A draggable, collapsible floating button on any web page lets you turn captions on anytime, and can be hidden on specific sites.
    • Mobile fullscreen support: Captions and settings work the same way when watching video in fullscreen on mobile browsers.
    • Keyboard shortcuts: Toggle bilingual subtitles and live voice captions with one key; shortcuts are customizable in your browser's extension shortcut settings.
    • Cloud sync (PRO): End-to-end encrypted sync of your settings and API keys — switch computers or sign in on mobile with the same account to sync automatically, with no reconfiguration.
    • Account & membership: Sign-in, trial, and subscription supported.
    • Multi-browser & multilingual: Supports Chrome, Edge, Whale, and Firefox (including Android), with a multilingual interface.

    Source code released under All Rights Reserved

    Download file