Just tried the download - it worked for me.
However, a new "feature" of Firefox (or my anti virus?) blocked the download as a "potential security risk" - clicking on the red button and choosing to allow the download let it go ahead.
Ho, hum - off now to find whatever irritating thing in the browser or my A/Virus has now decided to add this "helpful" blocking behaviour and nuke it...
Edit - turned off the real time protection in Windows Defender, tried again and got the same result so it looks like it's a new feature of Firefox..
Further edit - its a new thing in firefox, go to settings and then security and scroll down and you will find a check box you can turn off entitled "Block dangerous downloads" - apparently plain old zip files are "dangerous" according to the firefox team?
Re: latest patch
Threaded Mode