Edit: It worked with Safari though (which I normally never use). Any idea why this is so? Never encountered this with Brave or Firefox.
Thanks for the report, Max! I don’t think we’ve come across this issue before but I’ll have the team take a look and circle back with updates as they come 
Hey, Max! Are you still having issues downloading the app on Brave and Firefox?
Hi Akila,
Yes. And I meanwhile found out why.
I use a (common) plugin called ‘NeatDownloadManager Extension’. Great plugin, works everywhere without problems, until this thing with the Height dmg.
There’s an app that works together with plugins in browsers.
Ahh, I see. Seems like this may be an issue with the download manager. It may be worth temporarily disabling the extension if it’s not too disruptive to your workflow.
Indeed. But I also have browsers without this extension 
And only need to download the Height-dmg through a browser once.
But I guess the Height devs should take care this does not happen. There’s no single app on my Mac that suffers from this.