After 3 +/- 1 months, I'm not sure what it is this does. I understand what TDM is supposed to do, but after having used close to every possible combination of config options I can't say I've noticed anything of relevance; hardware is functional and new, so that is not it.

Doesn't retry download on failure. The same as default download manager.

It's decent. I knocked out 3 stars because:
1. I cannot add job for indirect downloads, like downloading from google drive, so I cannot set the number of threads before downloading.
2. I cannot increase number of threads during download either.
3. The icon in the toolbar doesn't show sign of activities (i.e. number of current downloads) or changes (i.e. number of completed downloads), something you see in icons of NoScript and uBlock Origin. You have to actually click the TDM icon to see those.

no option to set download directory

I have not used this add-on yet, but I find it weird.

Why does this add-on need information from the clipboard?

It is not so practical as I was expecting =s

very slow ,took 9 hours to download a 300mb vid using windows 7 p and firefox browser unable to locate tez files

It doesn't work well on Firefox 64. I can't download videos nor I can set the number of threads

buen add

Seeing the right address on to use

I can't really tell if this is actually doing anything. Also it seems like the max connections limit is 5, whereas freedownloadmanager.org uses 15-200 connections.