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Screenshot for YouTube™ | 4K Frame & Thumbnail Cap version history - 9 versions

Screenshot for YouTube™ | 4K Frame & Thumbnail Cap by AtSbi

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Screenshot for YouTube™ | 4K Frame & Thumbnail Cap version history - 9 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 1.2.9

    Released Jan 26, 2026 - 2.41 MB
    Works with firefox 142.0 and later
    Improved and Added 7 new languages: Japanese, Spanish, German, French, Russian, Portuguese (Brazil), Chinese

    Source code released under All Rights Reserved

    Download Firefox and get the extension
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  • Older versions

    Version 1.2.6

    Released Jan 6, 2026 - 2.4 MB
    Works with firefox 142.0 and later
    Now works even when YouTube changes their layout.
    Better performance on all video resolutions.

    Source code released under All Rights Reserved

    Download file

  • Version 1.2.5

    Released Jan 6, 2026 - 2.4 MB
    Works with firefox 142.0 and later

    Source code released under All Rights Reserved

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  • Version 1.2.4

    Released Jan 2, 2026 - 2.4 MB
    Works with firefox 142.0 and later
    Stability improvements and bug fixes for better reliability.

    Source code released under All Rights Reserved

    Download file

  • Version 1.2.3

    Released Dec 26, 2025 - 2.39 MB
    Works with firefox 142.0 and later
    What's New in v1.2.3:
    • Copy to Clipboard – Capture video frames and paste them directly into Photoshop, Discord, or any app without saving files.
    • Integrated Thumbnail Tool – Download HD thumbnails directly from the popup. No separate page needed.
    • Optional Thumbnail Preview – Enable/disable thumbnail preview in settings (default: off for faster loading).
    • Redesigned UI – Wider, cleaner popup with side-by-side action buttons for a more professional look.
    • Code Cleanup – Minor improvements and optimizations under the hood.

    Source code released under All Rights Reserved

    Download file

  • Version 1.2.2

    Released Dec 10, 2025 - 2.39 MB
    Works with firefox 142.0 and later
    • New Feature: Direct Thumbnail Access! The "Open Thumbnail" tool now opens the high-resolution video thumbnail directly in a new tab. No more redirects to external websites.
    • Improvement: Fixed the "Change Shortcut" button behavior for Firefox users to provide clear instructions on managing extension shortcuts.

    Source code released under All Rights Reserved

    Download file

  • Version 1.2.1

    Released Dec 6, 2025 - 2.39 MB
    Works with firefox 142.0 and later
    Version 1.2.1 - The "Fresh Look" Update! 🎨✨

    We've completely redesigned the extension to be more modern, beautiful, and easier to use. Here is what's new:

    Brand New UI: A sleek, gradient-based design that looks great and feels premium.
    One-Click Share: Love the tool? Share it with friends instantly using the new smart share button 📢.
    Rate Us Button: Enjoying the app? You can now easily rate us on the store with one click ⭐.
    Enhanced Arabic Support: Full RTL support and translations for all new features 🇦🇪🇸🇦.
    Better UX: Improved layout and smoother interactions.
    Enjoying the update? Please leave us a review! ⭐⭐⭐⭐⭐

    Source code released under All Rights Reserved

    Download file

  • Version 1.2.0

    Released Dec 2, 2025 - 2.39 MB
    Works with firefox 142.0 and later
    What’s New in v1.2.0
    Added a keyboard shortcut for instant frame capture (default: Alt+Shift+C).
    Improved frame quality and cleaner screenshots.
    New popup UI with easier access to shortcut settings.
    Thumbnail download has been moved to a safe external tool for better policy compliance.
    Improved compatibility with Chrome and Firefox.
    General performance and stability enhancements.

    Source code released under MIT License

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  • Version 1.1.0

    Released Apr 4, 2025 - 2.39 MB
    Works with firefox 109.0 and later

    Source code released under MIT License

    Download file