Update 17.11.2016: We have released a new download function that is not dependent on Java. Downloading multiple files is again possible in all supported browsers.
The Download tool which is visible from a folder or Hand-in, does not work on some browsers.
As the tool is based on Java it is not functional in browsers that does not support Java, such as Chrome. Additionally, a bug causes it to fail in newer versions of Firefox.
To solve these issues, we are looking to replace this tool as soon as possible. We are aiming to keep the user experience the same as before.
Workaround:
Download files individually or use Internet Explorer 11.