Assegnate 1 su 5 stelle

this add on was amazing loved using it and it was so easy but now there is nothing when i click on it to down load a youtube vid to mp3 or even mp4 and want to know why please as i really love this add on. if i have to pay a small fee to get it to work again i will but only if it works. please can any one help

Questa recensione riguarda una versione precedente (3.3.4.1-signed.1-signed) del componente aggiuntivo. 

There are several fixes in 3.4.4. It's available now on glimmersoft.com and should be online at mozilla.org too in a few days / weeks. Thanks!