[k3d3]

Nobody else has been able to reproduce it, and you haven't given enough information on what you're doing or what you've tried. Have you tried different machines? Different browsers? Have you tried pressing the various buttons in the UI? What kind of machine do you have? Do you have a very small amount of RAM? Et cetera.

You might say your browser works fine, but I'd put my money on something there being the issue.

[kuschku]

I tried 2 different machines, running two different versions of linux, tried Firefox, Firefox Aurora and Firefox nightly, all with clean profiles.

Neither "Save as" nor "View in new tab" work.

I said so on the github issue, too