You could try any extension made for chrome by first installing the Download Chrome Extension
Some years ago I used Free Download Manager quite a bit. It was pretty easy to configure and was not speed throttled even though it is totally free. You might try the chrome extension for it. Free Download Manager Chrome Extension
Edit: I used to use FlashGot too btw. But unless you are doing multiple links you really don't need an extension. FDM has a drop target. Just drag the dowload link and drop it on the target window to download.