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Description
One-click YouTube screenshot extension with save, copy, preview, and watermark support. TubeSnap 仅在 YouTube 页面运行，用于截图功能。 • storage：保存用户设置（格式、质量、水印样式等）。 • clipboardWrite：当用户选择“复制”时，将截图写入剪贴板。 • downloads：当用户选择“保存”时，将截图保存到本地设备。 • scripting：在极少数情况下（如扩展更新后页面未刷新），向当前 YouTube 页注入已打包的 content script 以恢复截图按钮功能。 扩展不收集、不上传、不共享任何个人数据，所有截图处理在本地完成。 ─── English (Permission Justification) TubeSnap runs only on YouTube pages to provide screenshot features. • storage: stores user preferences (format, quality, watermark options, etc.). • clipboardWrite: writes screenshot data to clipboard only when the user chooses Copy. • downloads: saves screenshot files locally only when the user chooses Save. • scripting: used in limited recovery cases (e.g., after extension update without page refresh) to inject packaged content scripts into the current YouTube tab and restore screenshot UI functionality. The extension does not collect, transmit, or share personal data. All screenshot processing is local.