5 Best Firefox & Chrome Extensions for Downloading YouTube Videos
Summary: This article reviews the top 5 YouTube video downloader extensions for Firefox, comparing their features, pros, and cons. While browser extensions offer convenient solutions for casual users, StreamFab YouTube Downloader stands out as the best option for those with long-term, high-quality download needs.
Table of Contents
I’m a big fan of YouTube videos because they offer a wealth of interesting content—from fitness and lifestyle vlogs to food-related channels, which are my personal favorites. I often follow Pamela’s fitness videos to work out. However, when I’m outdoors and away from Wi-Fi, it becomes difficult to stream them, so I often find myself needing to download YouTube videos for offline access.
If you’re like me and are currently looking for a reliable YouTube video downloader extension Firefox, then keep reading! While there are many browser extensions available for downloading videos, especially for Chrome and Firefox, this article focuses mainly on Firefox-compatible tools. If you're more familiar with Chrome, don’t worry—the process is quite similar, so we won’t repeat the steps here. But I must remind you, if the creator deleted the video, it is very hard to download deleted YouTube videos again, so make a backup in advance.
Top 5 YouTube Video Downloader Extension Firefox
1. Video DownloadHelper
Video DownloaderHelper is the most stable YouTube video downloader extension available, with high ratings and a large user base.
- Supports downloading videos and audio in multiple formats
- Compatible with numerous websites such as YouTube, Facebook, Vimeo, etc
- Automatically detects media resources on web pages for easy operation
- Videos downloaded from the free version will have a prominent watermark (QR code)
- Advertisements and upgrade prompts appear frequently
- Some users have reported stability issues such as download failures and audio-visual synchronization problems
Step-by-step Guide:

2. Free YouTube Video Downloader
Although this extension created by Elevate Tech is not the highest rated, it is one that I have personally tested and found to be truly usable. However, its operating steps may be slightly different from other extensions.
- Supports downloading videos and audio files in multiple resolutions and formats
- Easy to use, no registration required
- Completely free to use
- Few users, average ratings
- Issues with failed downloads and conversion errors
- Low update frequency, may not be compatible with the new version of YouTube
Step-by-step Guide:

3. YouTube Video Downloader
YouTube Video Downloader is also a highly rated extension. Although it does not have many users, it has a high rating. At the same time, after our testing, this extension is also proven to be effective.
- Fast download speed and short processing time, suitable for quickly obtaining video content
- Simple interface and clear operation process, suitable for beginners
- Sometimes the server is unstable, resulting in download failures or inability to connect
- There is a problem with redirecting to advertising pages, which poses potential security risks
- Some users have reported that the plugin is unstable and occasionally crashes or encounters errors
Step-by-step Guide:

This extension has a relatively low user base, but it is easy to use and suitable for users who only need basic download functionality. It supports direct downloading of YouTube videos on the page, with an intuitive interface that is easy for beginners to get started with. However, due to its average stability and low download success rate, it is recommended to use it only as a temporary tool.
- Supports separate download of video or audio
- Simple interface and easy operation
- The maximum resolution is 720p
- Frequent failures, slow speeds, download interruptions, and errors
- Repeated reports of redirection to advertising sites and even the launch of malicious downloaders, posing security risks
Step-by-step Guide:

The last one I want to recommend is "Easy YouTube Video Downloader Express", it was made by Dishita, and it has a large user base, but sometimes, it will uses a long time to analyze the video you want to download.
- Easy to use, download directly from the YouTube page without redirecting or copying links
- Supports downloading common video formats such as MP4 and 3GP, as well as high-quality MP3 (paid feature)
- Has approximately 450,000 users and enjoys high community recognition
- You need to purchase the professional version to download 1080p or MP3 formats
- The plugin sometimes fails, and the button may not be displayed or the download may fail
- The last update was a long time ago, so there may be compatibility issues
Step-by-step Guide:
Currently, there are almost no usable YouTube video downloader extensions available for Chrome, and using Firefox extensions also comes with various issues. This can be quite frustrating for those who frequently need to download videos. After some exploration, I discovered a highly professional downloader: StreamFab YouTube Downloader. During my trial period, I encountered none of the aforementioned issues.
Bonus! How to Download Youtube Videos without Limitation?

Download online videos from YouTube, Facebook, Instagram, Vimeo, and 1000+ other video-sharing sites. Multitasks and playlist downloads are also supported.
1. Best Features of StreamFab
- Compliant with over a thousand music and video sharing websites
- Supports playlist download and batch processing mode
- Downloading videos from YouTube up to 8K and music at 320 kbps
- Store VR 360° and HDR videos from YouTube
- Select the most suitable video codec from three choices: H264, VP9, or AV1
2. How to Use StreamFab YouTube Downloader

FAQs
Only some extensions have this feature, allowing you to choose between downloading video, audio, or video & audio during the download process. However, the downside of these extensions is that they are very unstable. Therefore, if you have long-term download needs, we recommend using StreamFab YouTube Downloader.
Conclusion
With a wide variety of YouTube video extension programs available for download in the Firefox browser, users can flexibly choose the most suitable extension program according to their preferences and needs. Whether you are looking for simplicity and ease of use, a wide range of functions, or professional features, these extension programs provide a convenient and hassle-free way to download YouTube videos. Additionally, if you prefer to use a download program, you can refer to the best YouTube playlist downloader review.