Easy YouTube Video Downloader
Easy YouTube Video Downloader
WITH THIS PLUGINS YOU CAN DOWNLOAD YOUTUBE VIDEO IN MP4,MP3 AND MANY FORMATS
FIRST GO TO HERE
https://addons.mozilla.org/en-US/firefox/addon/easy-youtube-video-downl-10137/
THEN INSTALL AS HERE:
AFTER INSTALLING RESTART MOZILA
AND OPEN YOUTUBE AND DOWNLOAD VIDEO