YouTube Video and Audio Downloader (WebEx)

YouTube Video and Audio Downloader (WebEx)

Download YouTube videos in all available formats and extract the original audio files

What is YouTube Video and Audio Downloader (WebEx)?
YouTube Video and Audio Downloader (WebEx) is a versatile Firefox add-on, built as a rewrite of a previous version by @inbasic. It allows users to download videos from YouTube in all available formats, as well as extract the original audio files. Optional features include a native client installation for smoother operation, and an FFmpeg executable which is needed for high-resolution video or audio files. As of version 1.0.0, this extension employs node-ytdl-core as its core for detection.
By: feller
Rating: 3.85 (1,738)
Version: 1.2.1 (Last updated: 2022-02-10)
Creation date: 2017-04-29
Weekly download count: 1,550
Firefox on Android: No
Risk impact: Very high risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
  • activeTab
  • storage
  • nativeMessaging
  • downloads
  • notifications
  • *://*
  • *://*
  • *://**
Size: 163.59K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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a rewrite of YouTube video and audio downloader add-on by @inbasic written in WebExtension.


  1. After installation, go to the options page and -> 1. (Optional) Install the native client (This is a small NodeJS client written by @andy_portmen) -> 2. (Optional) Install the FFmpeg executable

  2. FFmpeg integration is optional and required only if high resolution video or audio files are preferred (when combining audio-only and video-only streams is needed).

Note: As of version 1.0.0, this extension uses as its detection core.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Allows download of private videos
  • Downloads both audio and video
  • Works well for most resolutions
  • Does not merge audio and video files automatically
  • Confusing options for new users
  • Slow download speed
Most mentioned
  • Does not merge audio and video files automatically
  • Slow download speed
  • Works well for most resolutions
  • Downloads both audio and video
Recent reviews
For those wondering why the Ext won't merge. It is reported that large-size video is very likely to be interrupted while downloading, which will fail in starting any follow-up process (including merging) even such download can be continued to finish. So it is suggested to have another ffmpge-based media converter Ext and do the merging manually, which maybe the season those function in early version be cancelled.
by Jitzuki, 2024-04-04

by ROUGIER, 2024-04-02

Succeeds where others fail. Works well except for the highest HD videos. Those are streamed by YT as separate audio/video. This fails to capture and then merge those separate HD streams. However, 720P is good enough for my research purposes. Not looking for a theater experience. Addon may present too many confusing options for noobs, tho.
by Andre Bell, 2024-04-03
View all user reviews
Risk impact

YouTube Video and Audio Downloader (WebEx) is very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.

Risk likelihood

YouTube Video and Audio Downloader (WebEx) has earned a good reputation and can be trusted.

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