Screenshot for YouTube™ | 4K Frame & Thumbnail Cap EN
AtSbi · Firefox
Take clean, high-res screenshots from any YouTube video instantly. No play buttons, no dark gradients. Perfect for Thumbnails & Wallpapers.
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简介
Stop taking blurry screenshots with your system tools. Screenshot YouTube™ lets you extract the original video frame in its highest quality (HD, 4K, & 8K) instantly, without the annoying play bar or dark overlays.
Why is this the best tool for you?
Whether you are a YouTuber creating Thumbnails, a designer needing reference shots, or just want a wallpaper from a music video, this is the fastest way to get crisp images.
🚀 Top Features:
📸 Clean Capture: Automatically hides the play bar, title, and subtitles (CC) for a perfect shot.
🌟 Lossless Quality: Saves the image in full resolution (1080p, 4K, 8K) as PNG or JPG.
⚡ Instant & Fast: Works immediately, even if the video is playing.
🎹 Smart Shortcut: Press Alt+Shift+C to snap without moving your mouse.
🔒 Privacy First: No tracking, no external servers. Everything happens 100% on your device.
Perfect for:
- YouTubers: Create high-CTR thumbnails from your video source.
- Students: Save clear lecture slides and whiteboard notes.
- Memes: Capture funny frames with precise timing.
- Wallpapers: Save cinematic shots from 4K/8K music videos.
How to use:
- Open any YouTube video.
- Click the extension icon (or use the shortcut Alt+Shift+C).
- Your high-res screenshot saves instantly!
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 是做什么的
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 是一款面向 Firefox 的隐私与安全类扩展,主要用来拦截追踪器、屏蔽广告、管理 Cookie、加固浏览器指纹。官方对它的介绍是:Take clean, high-res screenshots from any YouTube video instantly. No play buttons, no dark gradients. Perfect for Thumbnails & Wallpapers.在Firefox 附加组件商店(AMO)上,它当前版本 1.2.9,评分 5(2 人评价),约 165 名用户。
适合什么人用
从功能定位看,Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 更适合在意上网被跟踪、希望减少广告干扰的用户。如果你平时只是偶尔遇到相关需求,用浏览器自带功能也能凑合;但如果这件事每天都发生,装一个专门处理它的扩展通常比手动操作省事得多。
怎么安装 Screenshot for YouTube™ | 4K Frame & Thumbnail Cap
- 打开Firefox 附加组件商店(AMO)上的官方页面;
- 点「添加到浏览器」并确认权限提示;
- 装好后在扩展列表里固定图标,方便随时开关。
本站只做索引与介绍,安装包来自官方商店。如果商店页面提示当前地区不可用,说明该扩展未在你所在区域上架。
常见问题
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 是免费的吗?
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 在Firefox 附加组件商店(AMO)免费提供下载。它是浏览器扩展,装上就能直接用,不需要注册账号。
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 安全吗?
它只申请了 0 项权限,范围比较克制,没有申请「读取所有网站数据」这种大权限。
Screenshot for YouTube™ | 4K Frame & Thumbnail Cap 支持哪些浏览器?
当前收录的版本来自Firefox 附加组件商店(AMO),适用于 Firefox。同一个扩展在其他商店可能有对应版本,但功能与版本号不一定相同。
怎么卸载 Screenshot for YouTube™ | 4K Frame & Thumbnail Cap?
在扩展管理页找到 Screenshot for YouTube™ | 4K Frame & Thumbnail Cap,点移除即可。它在本地保存的设置会一起清掉,不会残留数据。
权限清单 来自 manifest.json 原文
接口权限 3
activeTabclipboardWritestorage
