absolutely horrible, i have not tested the paid or chrome version but as of the free version, it does not recognize half the downloads and when it does it just says "failed" the ui looked good at first glance but confusing to use and not as clean as it seems, use free download manager or JDownloader 2 those are way better options and are completely free

Extremely rude customer service, waiting on a refund because it is most certainly NOT FREE! Doesn't download from MOST sites, slower than regular downloads.

Unfortunately in Firefox when this is enabled, files or photos are downloaded without their original name or extension e.g. 'download'.

Can download files from authenticated pages:

background.js:156:5
sendDownloadRequest/<
moz-extension://7e31b743-f68f-47f3-96e1-865cd3f64dcd/background.js:156:5

and:

Error processing windowTypes: This property is deprecated background.js:271
makeError resource://gre/modules/Schemas.jsm:450:14

Like Redmine... The downloaded file don't preserve the path chossed and have html from the login page.

I set firefox to ask me where to save the file in download, but with Ninja Download Manager active while asking me where to save the file, it always puts it in c: \ dowload !!!!!!

I installed it and found it had NO configuration settings and it did not work .
So, I un-installed it .