Thanks for providing an extremely important service. Despite the fact that I am a monetary contributor, I don't know if you hear it enough, but your one-man operation kicks some serious ass. And, I believe it's important enough to voice that here. Keep it up.
Glad to hear it worked for you :)
If you are satisfied with the free addon, the support provided and appreciate the work and want the development to continue in future, Pls. use the RATE & REVIEW widget located on left-side of this page – https://addons.mozilla.org/en-US/firefox/addon/easy-youtube-video-download/. Honestly, it is really disappointing that thousands of satisfied users do not leave a review and the very few unsatisfied ones do discouraging me to invest efforts into this non-profit, hobby project.
Thanks & Best Regards,
Easy Youtube Video Downloader Express