Private Downloader: Video & Stream Downloader EN
Private Downloader · Firefox
Save the video you're watching as one file: direct files, HLS and DASH streams, live streams, and players that hide their source. It all happens in your browser. No account, no server, no tracking, no remote code.
截图
简介
Private Downloader saves the video playing on the current page as one file you can play anywhere. Start the video, click the toolbar button, and choose Download video.
What it saves
- Direct video files (MP4, WebM, MOV, M4V, and Ogg), including signed addresses, videos in embedded players, and files a page fetches itself and plays from memory.
- HLS streams: transport-stream, fragmented-MP4, and audio-only segments, AES-128 encryption, separate audio tracks, and live streams recorded until you press Stop.
- DASH streams with separate video and audio, live DASH, and multi-period programmes joined into one file. Smooth Streaming too.
- Players that keep their source out of reach, through Record playback, up to eight times faster than real time.
- H.264, HEVC, MPEG-2, VP9, and AV1 video with AAC, MP3, AC-3, E-AC-3, DTS, Opus, or Vorbis audio, repackaged without re-encoding, so the quality is exactly what the site sent.
- Subtitles and closed captions inside the video and as a .vtt file; subtitles drawn as pictures as a .sup file. Ad breaks a stream marks are left out.
Built not to fail halfway
Pause and resume any stream download. A dropped connection is waited out. Close the tab or quit Firefox, and the download resumes later from the same place. Streams are assembled on your disk, so there is no size limit, and a stream that cannot be saved whole is refused with a reason rather than saved without its audio or video.
Private by design
No account, no server, no telemetry, no ads, and no remote code or remote configuration; the add-on collects no data. Videos are fetched only from the site you are watching and assembled inside Firefox. The license key is checked on your device and never phones home. Private windows and containers keep their own identity. If something fails, the popup writes a report with no page addresses, titles, tokens, or cookies for you to read before you send it.
Everyday use
Choose the quality, audio language, subtitles, or audio only; rename the file; pick a folder; select several videos at once; paste a link; or right-click a video, or press Alt+Shift+S, to save it straight away. A local history keeps your last fifty saves. It works in Firefox for Android too, and speaks English, German, French, Spanish, Portuguese, Italian, and Japanese.
Free and paid
Every download, file or stream, uses one of ten free saves, with no cooldowns and no daily caps; a download that fails or is canceled gives its save back. Unlimited downloads need a one-time $19 license key, bought at https://private-downloader.pages.dev and sold through Link, Stripe's merchant of record, which handles payment, tax, and receipts; the store you installed from is not the seller. One key works on all your own devices. Terms of sale, including the 30-day refund policy, are at https://private-downloader.pages.dev/terms and https://private-downloader.pages.dev/refunds.
Not supported
DRM-protected and sample-encrypted streams, and sites that block downloads. Private Downloader never bypasses logins, paywalls, or access controls.
Private Downloader: Video & Stream Downloader 是做什么的
Private Downloader: Video & Stream Downloader 是一款面向 Firefox 的下载管理类扩展,主要用来接管浏览器下载、批量抓取资源、加速大文件。官方对它的介绍是:Save the video you're watching as one file: direct files, HLS and DASH streams, live streams, and players that hide their source. It all happens in your browser. No account, no server, no tracking, no remote code.在Firefox 附加组件商店(AMO)上,它当前版本 0.9.1,约 33 名用户。
适合什么人用
从功能定位看,Private Downloader: Video & Stream Downloader 更适合经常下载视频、素材或整站资源的用户。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 Private Downloader: Video & Stream Downloader
- 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
Private Downloader: Video & Stream Downloader 是免费的吗?
Private Downloader: Video & Stream Downloader 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。
Private Downloader: Video & Stream Downloader 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。
Private Downloader: Video & Stream Downloader 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 Private Downloader: Video & Stream Downloader?
在扩展管理页找到 Private Downloader: Video & Stream Downloader,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 11
activeTabcontextMenuscookiesdeclarativeNetRequestWithHostAccessdownloadsdownloads.opennotificationsscriptingstoragewebNavigationwebRequest




