Install the MEGA Firefox extension for vastly improved download performance. It will allow you to batch-download an unlimited number of files without any size restrictions from MEGA.
Here is a little more about the MEGA service:
MEGA is a revolutionary cloud storage service providing up to 50GB of free space, on-the-fly encryption and extremely fast file transfers thanks to our innovative in-browser multiplexing technology. MEGA is the most secure service in the industry as it encrypts user’s data in the browser ‘on the fly’ and decrypts only when using keys which are solely in the hands of our users. With over 6 Million registered users internationally, MEGA has become a serious contender in the cloud storage arena. MEGA was launched on Jan 20, 2013 in New Zealand.
Want to learn more about this add-on? Head over to the Firefox Add-ons website.