This worked fine a couple days ago, then an update hit that made it so if you tried to check on a download the page would keep everything that it could download in the list which lead to thousands of idle downloads when you watched something from twitch or youtube that would lock down firefox if you tried to view downloads. Even though they said they would automatically be deleted they werent. Flash forward to today where another update hit that added a manual clear list that does absolutely nothing. The add on also likes to just stop working mid download and again if you try and check on it loading all videos locks down firefox. The add on also likes to just stop working now from time to time. It wont even load the box to see if there are videos that could be downloaded when you click on it.