There is no way to remove this free download manager from firefox that I can determine. I noticed that it was using like 20% of my CPU and I wasn't doing anything. It was (supposedly) just idling in memory. It is my understanding that this thing is a problem for a lot of people and I would like to scan my pc for malware and so forth and also get rid of this stupid extension, because apparently it uses a lot of resources and could also be a form of malware. Where should I start with this?