Downloading files from dropbox doesn't work

[knocte]

I got a file from someone to download a file from his dropbox account.

It's not easy to extract the exact link so I go the link that I was handed (with Firefox), click on "Download" combobox -> "Direct download" option, then I'm prompted to sign up, but I click on the small link that says "no thanks, take me to the download", and then Firefox starts downloading. Then I go to Firefox's download manager, locate the download -> right click -> Copy download link.

Then I go to the terminal and I get this error from snatch:

$ snatch --url https://dl.dropboxusercontent.com/content_link/onXmWanH62azyJzz85nZe7mkv8kLr8PMPX71uXtmCW15vtnwBEV6iTra4DGuqhAI/file?dl=1
# Waiting a response from the remote server... OK !
[ERROR] Cannot get the content length of the remote content, from the server.

I've also tried to Pause or Cancel the download before I launch this command, but the result is the same (and yes, firefox allows me to pause and resume the download, and Firefox shows me the amount of bytes left, so no issue with the Content-Length header from the server I guess).

[ghost]

This page is "Error 404". I am not sure, but I think that Dropbox gives individual links for each browser session.