Rated 3 out of 5 stars

The Quality of sound significantly reduces from the original file, in SOME instances, why would this happen?

Convenient add-on, nonetheless, although i would like to see a fix for this, then i would consider donating.

This review is for a previous version of the add-on (2.6.1.1-signed). 

Hi, this is more than likely caused by the volume control feature. You can disable the volume control in 2.6.2 (the option is there in 2.6.1, but it's broken). You can pull 2.6.2 down from www.glimmersoft.com (the official page for YoutubeMP3Podcaster). I will have 2.6.2 up on the official Mozilla site soon too. If you'd like to email me some of the videos you're trying I can see why it's happening. Thanks!