LoopIt - A-B Video Looper EN
POLPROG · Firefox
Repeat exact parts of YouTube, Vimeo and HTML5 videos with A-B looping, speed control, saved sections and shortcuts.
<all_urls>),意味着它可以读取你在任意站点的页面内容,包括已登录的页面。这是许多扩展正常工作的必要条件,但也值得你确认来源可信。
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简介
LoopIt is a precise A-B video looper for repeating selected parts of online videos.
Set the start and end points, choose the number of repetitions, and start the loop. It is ideal for music practice, language learning, dance training, lecture review, tutorials, sports analysis, and focused study.
🎯 PRECISE A-B VIDEO LOOPING
• Set precise start and end times
• Repeat continuously or choose a specific number of repetitions
• Start and stop looping with keyboard shortcuts
• Navigate between saved sections using Previous and Next controls
⏩ PLAYBACK SPEED CONTROL
• Adjust playback speed from 0.25× to 2×
• Use the slider, preset buttons, or keyboard controls
• Keep your preferred playback settings
⭐ SAVE AND ORGANIZE VIDEO SECTIONS
• Save useful sections to Favorites
• Access recently used sections from Recent Loops
• View locally stored repetition counts
• Export and import saved data using JSON backups
🔗 SHARE SELECTED VIDEO SECTIONS
Generate links containing selected start and end times. Share practice sections, tutorial fragments, lecture highlights, or important video moments with other users.
⌨ QUICK CONTROLS
• Keyboard shortcuts for starting, stopping, and opening the panel
• Right-click actions for quick access
• Draggable and minimizable control panel
• Dark, Light, and Blue themes
• Automatic system dark mode support
• Available in 16 languages
🎸 PERFECT FOR
• Instrument and music practice
• Pronunciation and language learning
• Dance choreography and movement analysis
• Online courses, lectures, and tutorials
• Sports technique and demonstration review
• Focused study and detailed video analysis
🌐 VIDEO COMPATIBILITY
The extension works with YouTube, YouTube Shorts, Vimeo, Facebook Reels, and most standard HTML5 video players.
Compatibility may vary on DRM-protected videos, embedded players, or websites using heavily customized playback systems.
🔒 PRIVACY FIRST
The extension does not collect personal data, track browsing activity, run analytics, or send saved information to external servers.
Favorites, Recent Loops, and settings are stored locally in the browser and remain on the device.
⚡ PRACTICE AND LEARN WITH PRECISION
Repeat exact video sections, slow down playback, and save important moments. Use A-B looping for language learning, music practice, courses, lectures, tutorials, and technique analysis.
🏢 ABOUT THE AUTHOR
LoopIt is developed by POLPROG, a Polish technology company creating browser extensions, web applications, and mobile apps with a focus on privacy.
Website: https://polprog.pl/
LoopIt product page: View product page
Chrome version: View in Chrome Web Store
LoopIt - A-B Video Looper 是做什么的
LoopIt - A-B Video Looper 是一款面向 Firefox 的搜索增强类扩展,主要用来补充搜索结果、切换搜索引擎、过滤无效结果。官方对它的介绍是:Repeat exact parts of YouTube, Vimeo and HTML5 videos with A-B looping, speed control, saved sections and shortcuts.在Firefox 附加组件商店(AMO)上,它当前版本 1.10.0,评分 5(2 人评价),约 49 名用户。
适合什么人用
从功能定位看,LoopIt - A-B Video Looper 更适合每天大量搜索、希望结果更干净准确的用户。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。需要注意的是它作用于所有网站,装上后建议先观察一两天,确认不影响常用站点的正常使用。
怎么安装 LoopIt - A-B Video Looper
- 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
LoopIt - A-B Video Looper 是免费的吗?
LoopIt - A-B Video Looper 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。
LoopIt - A-B Video Looper 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。
LoopIt - A-B Video Looper 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 LoopIt - A-B Video Looper?
在扩展管理页找到 LoopIt - A-B Video Looper,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
站点访问 1
<all_urls>
接口权限 2
menusstorage



