Only thing the app is good at in its current state is batch downloading images or file links from a webpage.

The download manager portion is mere shell of its former self due to firefox regressions. No multi-part downloads, no control over download speed, no download last 4KB first to enable video play while downloading. Live media detect is misisng and attempting to download videos is non-functional on even simple websites. As far as I can tell, you can't even tell firefox to use it as default download manager as you could with FlashGot years ago.