Firefox is widely used browser and YouTube is one of the most popular website to watch videos online. Sometimes i feel like its an Internet theorem that Google is king for Search land, Youtube for Videos and Firefox for browsers. I don’t want to manipulate your mind and throw an explanation for theorem:

Theorem, is the statement derived from formal accepted systems such as axioms and provide solutions to real-world problems

Coming back to our point of discussion, while watching videos online sometimes you find your favorite video and desire to download it on your PC. Then what you do? The simple answer to this, is that you will search on internet or use third-party applications. No need to take so much pain because already, there are many Firefox add-ons which allows you to download videos from YouTube. To save your valuable time we’re sharing best Fiefox add-ons which allows you to download YouTube videos easily.

01. Easy YouTube Video Downloader

This is the simplest and easiest way to download videos from YouTube. This add-on supports video formats like FLV, 3GP, MP3, MP4, 720p HD and 1080p Full-HD qualities and in single click you can download video directly by using inbuilt download buttons.

02. NetVideoHunter Video Downloader

This add-on is a download helper tool that allows you to easily find and download videos from almost any video-sharing site like YouTube, Facebook, Metacafe, Dailymotion, etc. One thing i like about this add-on is that you can preview videos and music in built-in media player.

03. Download YouTube Videos +

This add-on comes with toolbar and browser button that allows you to download videos from any tube sites. This add-on also includes Bing Search, Microsoft powered translator, Stumbleupon and Facebook buttons.

04. 1-Click YouTube Video Download

This add-on supports YouTube’s new layout. By using this add-on you can download YouTube videos in FLV, 3GP and MP4 format. The best thing about this add-on is that it allows you to download videos from Flash sites too.

05. YouTube Download

This add-on is one of the best add-on to download YouTube video and music. It allows you to download any YouTube video with a single click and it supports various formats like FLV, High-Quality MP4 (iPod), HD and 3GP.