YouTube Downloader EN
Alpha Stack · Firefox
YouTube Downloader – Free YouTube Video Downloader & MP3 Converter | 4K Support Easily download YouTube videos in MP3, MP4, HD, or 4K with this fast and free Firefox extension. Convert YouTube to MP3 or download videos in any format with one click.
<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
<strong>YouTube Video Downloader – Fast, Free, and Easy Downloads in 4K and MP3</strong>
Introducing the ultimate YouTube Video Downloader extension for Firefox, designed to make downloading videos and converting them to audio formats simpler and faster than ever. This free tool offers features that rival even the most expensive paid options, making it the top choice for downloading and converting YouTube videos online.
<strong>Key Features:</strong>
<strong>Download Videos Up to 4K Resolution:</strong> Enjoy crystal-clear video quality with support for Full HD, 2K, and 4K downloads.
<strong>Convert Videos to MP3 and More:</strong> Easily convert YouTube videos into MP3, MP4, and various other formats for offline listening or viewing.
<strong>Faster Than Paid Tools:</strong> Our downloader is not only free but also faster and more reliable than most paid tools, saving you time and money.
<strong>Works on All Devices:</strong> Whether you're on a PC, Mac, Android, or iPhone, this extension works flawlessly across all devices and browsers.
<strong>No App Installation Required:</strong> Forget the hassle of downloading and installing apps. Use this online tool directly from your browser.
<strong>Supports Multiple Platforms:</strong> While optimized for YouTube, this tool also works with other platforms, enhancing its versatility.
<strong>Completely Free & Ad-Free:</strong> Unlike other tools, this downloader is 100% free with no annoying ads or hidden charges.
<strong>Why Choose This YouTube Video Downloader?</strong>
This tool is perfect for anyone looking to download YouTube videos online without compromising on quality or speed. It combines the functionality of various tools, offering features you won't find even in premium services.
<ul>
<li>Save your favorite YouTube videos in seconds.</li>
<li>Convert videos to MP3 for offline listening.</li>
<li>Enjoy high-speed downloads without limits.</li>
<li>Works directly from your browser—no app installation needed.</li>
</ul>
<strong>How to Use This Downloader?</strong>
<ol>
<li>Install the YouTube Video Downloader extension from the Firefox Add-ons store.</li>
<li>Navigate to the YouTube video you wish to download.</li>
<li>Click the download button integrated below the video.</li>
<li>Select your preferred format (MP4, MP3, etc.) and resolution (up to 4K).</li>
<li>Click 'Download,' and your file will be ready in moments!</li>
</ol>
<strong>Supported Features and Platforms:</strong>
<strong>Keywords:</strong> YouTube downloader, YouTube video downloader, YouTube to MP3 converter, download YouTube videos, free YouTube downloader, YT downloader, save from YouTube, and more.
<strong>Formats Supported:</strong> MP4, MP3, and other popular formats.
<strong>Platforms:</strong> Works seamlessly with YouTube and other platforms, enhancing your downloading experience.
<strong>A Better Experience Than Paid Tools</strong>
Why pay for expensive tools when this free downloader offers more features and faster performance? With no restrictions, no hidden costs, and no software to install, it's the most convenient way to save YouTube videos online.
<strong>Try it now and experience the fastest, most reliable, and feature-rich YouTube video downloader available today!</strong>
Whether you’re downloading for personal use, offline viewing, or audio extraction, this extension has got you covered.
<strong>Note:</strong> Please ensure that you have the necessary permissions to download and use content from YouTube, respecting copyright laws and YouTube's terms of service.
YouTube Downloader 是做什么的
YouTube 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:YouTube Downloader – Free YouTube Video Downloader & MP3 Converter | 4K Support Easily download YouTube videos in MP3, MP4, HD, or 4K with this fast and free Firefox extension. Convert YouTube to MP3 or download videos in any format with one click.在Firefox 附加组件商店(AMO)上,它当前版本 1.2,评分 3.23(82 人评价),约 6,617 名用户。
适合什么人用
从功能定位看,YouTube 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。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 YouTube 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
YouTube Downloader 是免费的吗?
YouTube 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。
YouTube 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。
YouTube 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 YouTube Downloader?
在扩展管理页找到 YouTube 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
站点访问 2
*://*/*<all_urls>
接口权限 6
activeTabdownloadsstoragetabswebRequestwebRequestBlocking


